成考院校在线答案
- 2024-03-05 [单选] <p class="MsoNormal">26、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">总体</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:2.0pt;mso-text-raise: -2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1327" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image425.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1327" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image426.png"> <!--[endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">服从正态分布</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1328" type="#_x0000_t75" style='width:36.6pt;height:15pt'> <v:imagedata src="xxdsb11.files/image427.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="49" height="20" v:shapes="_x0000_i1328" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image428.png"> <!--[endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">，其中</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1329" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image413.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1329" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image414.png"> <!--[endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">为未知参数，</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1330" type="#_x0000_t75" style='width:47.4pt;height:19.8pt'> <v:imagedata src="xxdsb11.files/image429.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="63" height="26" v:shapes="_x0000_i1330" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image430.png"> <!--[endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">为样本，下面四个关于</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1331" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image413.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1331" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image414.png"> <!--[endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">的无偏估计，考虑有效性最好的是（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">28、<span lang="EN-US" style="font-size:12.0pt"><span style="position:relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1183" type="#_x0000_t75" style='width:24pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image262.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="32" height="21" v:shapes="_x0000_i1183" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image263.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1183" DrawAspect="Content" ObjectID="_1604819047"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">为任意两事件，若</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1184" type="#_x0000_t75" style='width:24pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image262.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="32" height="21" v:shapes="_x0000_i1184" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image263.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1184" DrawAspect="Content" ObjectID="_1604819048"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">之积为不可能事件，则称</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1185" type="#_x0000_t75" style='width:12pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image264.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="16" height="17" v:shapes="_x0000_i1185" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image265.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1185" DrawAspect="Content" ObjectID="_1604819049"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">与</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1186" type="#_x0000_t75" style='width:12pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image266.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="16" height="17" v:shapes="_x0000_i1186" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image267.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1186" DrawAspect="Content" ObjectID="_1604819050"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal" style="margin-left:30.0pt;text-indent:-30.0pt;mso-char-indent-count: -2.5;line-height:150%">28、<span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">若总体为正态分布，方差未知，检验</span><span lang="EN-US" style="font-size: 12.0pt;line-height:150%;position:relative;top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1436" type="#_x0000_t75" style='width:54.6pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image582.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="73" height="22" v:shapes="_x0000_i1436" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image583.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">，对</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1437" type="#_x0000_t75" style='width:54.6pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image584.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="73" height="22" v:shapes="_x0000_i1437" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image585.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">抽取样本</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:30.0pt;text-indent:-30.0pt;mso-char-indent-count: -2.5;line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height: 150%"><span style="mso-tab-count:1"> </span><span style="position:relative;top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1438" type="#_x0000_t75" style='width:58.2pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image586.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="78" height="22" v:shapes="_x0000_i1438" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image587.png"> <!--[endif]--></span>,</span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">则拒绝域仅与（</span><span style="font-size:12.0pt;line-height:150%"> </span><span style="font-size: 12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">）有关</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">40、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-font-kerning: 0pt">已知</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative;top:39.0pt;mso-text-raise:-39.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1245" type="#_x0000_t75" style='width:166.2pt;height:85.2pt' o:ole=""> <v:imagedata src="xxds04.files/image314.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="222" height="114" v:shapes="_x0000_i1245" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image315.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1245" DrawAspect="Content" ObjectID="_1604819025"> </o:OLEObject> </xml><![endif]-->,</span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">则下列向量中与</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1246" type="#_x0000_t75" style='width:40.2pt;height:16.8pt' o:ole=""> <v:imagedata src="xxds04.files/image316.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="54" height="22" v:shapes="_x0000_i1246" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image317.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1246" DrawAspect="Content" ObjectID="_1604819026"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">都正交的是（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span></p>
- 2024-03-05 [单选] <p class="MsoNormal" style="line-height:150%">11、<span style="font-size:12.0pt; line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt">设</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="position: relative;top:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1104" type="#_x0000_t75" style='width:13.2pt;height:13.8pt' o:ole=""> <v:imagedata src="xxds04.files/image103.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1104" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image008.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1104" DrawAspect="Content" ObjectID="_1604818882"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">是</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:3.0pt;mso-text-raise: -3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1105" type="#_x0000_t75" style='width:33pt;height:12pt' o:ole=""> <v:imagedata src="xxds04.files/image061.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="44" height="16" v:shapes="_x0000_i1105" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image062.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1105" DrawAspect="Content" ObjectID="_1604818883"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">矩阵，</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:3.0pt;mso-text-raise: -3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1106" type="#_x0000_t75" style='width:40.2pt;height:15pt' o:ole=""> <v:imagedata src="xxds04.files/image023.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="54" height="20" v:shapes="_x0000_i1106" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image024.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1106" DrawAspect="Content" ObjectID="_1604818884"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">是非齐次线性方程组，则必有（</span><span style="font-size:12.0pt; line-height:150%"> </span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">）</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%;mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">38、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">设二维随机变量</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1049" type="#_x0000_t75" style='width:34.2pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image041.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="46" height="21" v:shapes="_x0000_i1049" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image042.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1049" DrawAspect="Content" ObjectID="_1604819122"> </o:OLEObject> </xml><![endif]--><span style="position:relative;top:12.0pt;mso-text-raise: -12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1050" type="#_x0000_t75" style='width:59.4pt;height:30.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image043.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="79" height="41" v:shapes="_x0000_i1050" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image044.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1050" DrawAspect="Content" ObjectID="_1604819123"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">，则</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1051" type="#_x0000_t75" style='width:63pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image045.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="84" height="21" v:shapes="_x0000_i1051" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image046.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1051" DrawAspect="Content" ObjectID="_1604819124"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal" style="margin-left:30.0pt;text-indent:-30.0pt;mso-char-indent-count: -2.5;line-height:150%">5、<span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">设</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%;position:relative;top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1227" type="#_x0000_t75" style='width:56.4pt;height:19.8pt'> <v:imagedata src="xxdsb10.files/image287.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="75" height="26" v:shapes="_x0000_i1227" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image288.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">是来自正态总体</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1228" type="#_x0000_t75" style='width:47.4pt;height:16.8pt'> <v:imagedata src="xxdsb10.files/image322.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="63" height="22" v:shapes="_x0000_i1228" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image323.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">的样本，</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1229" type="#_x0000_t75" style='width:58.2pt;height:16.8pt'> <v:imagedata src="xxdsb10.files/image324.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="78" height="22" v:shapes="_x0000_i1229" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image325.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">是来自正态总体</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1230" type="#_x0000_t75" style='width:51.6pt;height:16.8pt'> <v:imagedata src="xxdsb10.files/image326.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="69" height="22" v:shapes="_x0000_i1230" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image327.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">的样本且</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1231" type="#_x0000_t75" style='width:56.4pt;height:19.8pt'> <v:imagedata src="xxdsb10.files/image287.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="75" height="26" v:shapes="_x0000_i1231" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image288.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">与</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1232" type="#_x0000_t75" style='width:58.2pt;height:16.8pt'> <v:imagedata src="xxdsb10.files/image324.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="78" height="22" v:shapes="_x0000_i1232" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image325.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">相互独立，则</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:30.0pt;text-indent:-30.0pt;mso-char-indent-count: -2.5;line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height: 150%"><span style="mso-tab-count:1"> </span><span style="position:relative;top:18.0pt;mso-text-raise:-18.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1233" type="#_x0000_t75" style='width:203.4pt;height:39.6pt'> <v:imagedata src="xxdsb10.files/image328.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="271" height="53" v:shapes="_x0000_i1233" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image329.png"> <!--[endif]--></span></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">服从的分布为（</span><span style="font-size:12.0pt;line-height:150%"> </span><span style="font-size: 12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">4、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">设</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1151" type="#_x0000_t75" style='width:9.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image210.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="13" height="21" v:shapes="_x0000_i1151" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image211.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1151" DrawAspect="Content" ObjectID="_1604819225"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">服从参数为</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:3.0pt;mso-text-raise:-3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1152" type="#_x0000_t75" style='width:11.4pt;height:14.4pt' o:ole=""> <v:imagedata src="xxdsb09.files/image212.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="15" height="19" v:shapes="_x0000_i1152" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image171.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1152" DrawAspect="Content" ObjectID="_1604819226"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">的泊松分布</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1153" type="#_x0000_t75" style='width:36.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image213.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="49" height="21" v:shapes="_x0000_i1153" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image214.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1153" DrawAspect="Content" ObjectID="_1604819227"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">，则下列错误的是（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">14、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_86" o:spid="_x0000_i1108" type="#_x0000_t75" style='width:368.4pt;height:44.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image084.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="491" height="59" v:shapes="图片_x0020_86" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image084.png"> <!--[endif]--></span></p>
- 2024-03-05 [单选] <p class="MsoNormal" style="margin-left:30.0pt;text-indent:-30.0pt;mso-char-indent-count: -2.5;line-height:150%">28、<span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">对于正态分布</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%;position:relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1400" type="#_x0000_t75" style='width:63pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image474.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="84" height="22" v:shapes="_x0000_i1400" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image525.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">，抽取容量为</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%">10</span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">的样本，算得样本均值</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:3.0pt;mso-text-raise:-3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1401" type="#_x0000_t75" style='width:47.4pt;height:15pt'> <v:imagedata src="xxdsb11.files/image526.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="63" height="20" v:shapes="_x0000_i1401" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image527.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">，样本方差</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:3.0pt;mso-text-raise:-3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1402" type="#_x0000_t75" style='width:60.6pt;height:15pt'> <v:imagedata src="xxdsb11.files/image528.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="81" height="20" v:shapes="_x0000_i1402" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image529.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">，给定显著水平</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:3.0pt;mso-text-raise:-3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1403" type="#_x0000_t75" style='width:45pt;height:13.2pt'> <v:imagedata src="xxdsb11.files/image530.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="60" height="18" v:shapes="_x0000_i1403" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image531.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">，检验假设</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1404" type="#_x0000_t75" style='width:56.4pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image532.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="75" height="22" v:shapes="_x0000_i1404" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image533.png"> <!--[endif]--> <!--[if gte vml 1]><v:shape id="_x0000_i1405" type="#_x0000_t75" style='width:26.4pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image534.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="35" height="22" v:shapes="_x0000_i1405" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image535.png"> <!--[endif]--></span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:30.0pt;text-indent:-30.0pt;mso-char-indent-count: -2.5;line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height: 150%"><span style="mso-tab-count:1"> </span><span style="position:relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1406" type="#_x0000_t75" style='width:43.2pt;height:13.2pt'> <v:imagedata src="xxdsb11.files/image536.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="58" height="18" v:shapes="_x0000_i1406" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image537.png"> <!--[endif]--></span>.</span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">则正确的方法和结论是（</span><span style="font-size:12.0pt;line-height:150%"> </span><span style="font-size: 12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p>