成考院校在线答案
- 2024-03-05 [单选] <p class="MsoNormal" style="line-height:150%">10、<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:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1082" type="#_x0000_t75" style='width:52.2pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds03.files/image095.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="70" height="26" v:shapes="_x0000_i1082" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image096.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1082" DrawAspect="Content" ObjectID="_1604818806"> </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"">是方程组</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_i1083" type="#_x0000_t75" style='width:45pt;height:15pt' o:ole=""> <v:imagedata src="xxds03.files/image097.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="60" height="20" v:shapes="_x0000_i1083" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image098.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1083" DrawAspect="Content" ObjectID="_1604818807"> </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"">的基础解系，则下列向量组中也可作为</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_i1084" type="#_x0000_t75" style='width:45pt;height:15pt' o:ole=""> <v:imagedata src="xxds03.files/image097.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="60" height="20" v:shapes="_x0000_i1084" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image098.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1084" DrawAspect="Content" ObjectID="_1604818808"> </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"">的基础解系的是（</span><span style="font-size:12.0pt;line-height: 150%"> </span><span style="font-size:12.0pt;line-height:150%;font-family: 宋体;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" style="line-height:150%">9、<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">实二次型</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="position: relative;top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1342" type="#_x0000_t75" style='width:202.2pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds05.files/image421.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="270" height="26" v:shapes="_x0000_i1342" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image422.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1342" DrawAspect="Content" ObjectID="_1604819153"> </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"">，则负惯性指数为（</span><span style="font-size:12.0pt;line-height: 150%"> </span><span style="font-size:12.0pt;line-height:150%;font-family: 宋体;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">23、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">设连续型随机变量</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_i1182" type="#_x0000_t75" style='width:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image265.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1182" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image266.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1182" DrawAspect="Content" ObjectID="_1604819256"> </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"">的密度函数为</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_i1183" type="#_x0000_t75" style='width:27pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image267.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="36" height="21" v:shapes="_x0000_i1183" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image268.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1183" DrawAspect="Content" ObjectID="_1604819257"> </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"">，则当（</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"">）时，</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:9.0pt;mso-text-raise:-9.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1184" type="#_x0000_t75" style='width:60pt;height:26.4pt' o:ole=""> <v:imagedata src="xxdsb09.files/image269.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="80" height="35" v:shapes="_x0000_i1184" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image270.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1184" DrawAspect="Content" ObjectID="_1604819258"> </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"">为随机变量</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:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image265.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1185" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image266.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1185" DrawAspect="Content" ObjectID="_1604819259"> </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"">数学期望</span><span lang="EN-US" style="font-size:12.0pt">.</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">2、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">设随机变量</span><span lang="EN-US" style="font-size:12.0pt">X</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"">的分布函数为</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_i1107" type="#_x0000_t75" style='width:27pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image130.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="36" height="21" v:shapes="_x0000_i1107" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image108.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1107" DrawAspect="Content" ObjectID="_1604819022"> </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"">，下列结论中不一定成立的是（</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" style="margin-left:30.0pt;text-indent:-30.0pt;mso-char-indent-count: -2.5;line-height:150%">13、<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"">在假设检验中，设</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%;position:relative;top:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1346" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image457.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1346" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image426.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"">服从正态分布</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_i1347" type="#_x0000_t75" style='width:43.2pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image458.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="58" height="22" v:shapes="_x0000_i1347" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image459.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"">，</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_i1348" type="#_x0000_t75" style='width:15pt;height:15pt'> <v:imagedata src="xxdsb11.files/image460.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="20" height="20" v:shapes="_x0000_i1348" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image461.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"">未知，假设检验问题为</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_i1349" type="#_x0000_t75" style='width:124.8pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image462.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="166" height="22" v:shapes="_x0000_i1349" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image463.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"">，则在显著水平</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_i1350" type="#_x0000_t75" style='width:9pt;height:9pt'> <v:imagedata src="xxdsb11.files/image439.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="12" v:shapes="_x0000_i1350" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image440.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"">下，</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_i1351" type="#_x0000_t75" style='width:16.8pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image464.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="22" height="22" v:shapes="_x0000_i1351" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image465.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"">的拒绝域为（</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">3、<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">若方程组</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative;top:28.0pt;mso-text-raise:-28.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1160" type="#_x0000_t75" style='width:97.8pt;height:63pt' o:ole=""> <v:imagedata src="xxds04.files/image185.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="130" height="84" v:shapes="_x0000_i1160" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image186.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1160" DrawAspect="Content" ObjectID="_1604818939"> </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"">仅有零解，则（</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%">15、<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">已知</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="position: relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1123" type="#_x0000_t75" style='width:27pt;height:16.2pt' o:ole=""> <v:imagedata src="xxds04.files/image123.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="36" height="22" v:shapes="_x0000_i1123" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image124.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1123" DrawAspect="Content" ObjectID="_1604818902"> </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"">为</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_i1124" type="#_x0000_t75" style='width:10.8pt;height:12pt' o:ole=""> <v:imagedata src="xxds04.files/image125.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="16" v:shapes="_x0000_i1124" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image004.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1124" DrawAspect="Content" ObjectID="_1604818903"> </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"">阶方阵，</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:6.0pt;mso-text-raise: -6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1125" type="#_x0000_t75" style='width:1in;height:16.2pt' o:ole=""> <v:imagedata src="xxds04.files/image126.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="96" height="22" v:shapes="_x0000_i1125" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image127.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1125" DrawAspect="Content" ObjectID="_1604818904"> </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"">且</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_i1126" type="#_x0000_t75" style='width:42.6pt;height:15pt' o:ole=""> <v:imagedata src="xxds04.files/image128.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="57" height="20" v:shapes="_x0000_i1126" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image129.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1126" DrawAspect="Content" ObjectID="_1604818905"> </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"">则有（</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">30、 <span style="line-height:150%;font-family:Microsoft Yahei;font-size:12pt;">假设随机变量</span><span style="line-height:150%;font-size:12pt;"><span> <!--[if gte vml 1]><![endif]--> <!--[if !vml]--><img width="19" height="17" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image105.png"> <!--[endif]--></span> <!--[if gte mso 9]><![endif]--></span><span style="line-height:150%;font-family:Microsoft Yahei;font-size:12pt;">的分布未知</span><span style="line-height:150%;font-size:12pt;">.</span><span style="line-height:150%;font-family:Microsoft Yahei;font-size:12pt;">但已知</span><span style="line-height:150%;font-size:12pt;"><span> <!--[if gte vml 1]><![endif]--> <!--[if !vml]--><img width="147" height="25" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image160.png"> <!--[endif]--></span> <!--[if gte mso 9]><![endif]--></span><span style="line-height:150%;font-family:Microsoft Yahei;font-size:12pt;">则</span><span style="line-height:150%;font-size:12pt;"><span> <!--[if gte vml 1]><![endif]--> <!--[if !vml]--><img width="19" height="17" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image105.png"> <!--[endif]--></span> <!--[if gte mso 9]><![endif]--></span><span style="line-height:150%;font-family:Microsoft Yahei;font-size:12pt;">落在</span><span style="line-height:150%;font-size:12pt;"> </span></p><p class="MsoNormal" style="text-indent:36pt;"> <span style="line-height:150%;font-size:12pt;"> <!--[if gte vml 1]><![endif]--> <!--[if !vml]--><img width="104" height="18" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image162.png"> <!--[endif]--></span><span style="line-height:150%;font-family:Microsoft Yahei;font-size:12pt;">内的概率不小于（</span><span style="line-height:150%;font-size:12pt;"> </span><span style="line-height:150%;font-family:Microsoft Yahei;font-size:12pt;">）</span><span style="line-height:150%;font-size:12pt;"> </span></p>
- 2024-03-05 [单选] <p class="MsoNormal">8、<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:12.0pt;mso-text-raise:-12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1065" type="#_x0000_t75" style='width:47.4pt;height:30.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image081.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="63" height="41" v:shapes="_x0000_i1065" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image082.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1065" DrawAspect="Content" ObjectID="_1604818928"> </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 lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:12.0pt;mso-text-raise:-12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1066" type="#_x0000_t75" style='width:69pt;height:30.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image083.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="92" height="41" v:shapes="_x0000_i1066" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image084.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1066" DrawAspect="Content" ObjectID="_1604818929"> </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 lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:12.0pt;mso-text-raise:-12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1067" type="#_x0000_t75" style='width:56.4pt;height:30.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image085.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="75" height="41" v:shapes="_x0000_i1067" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image086.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1067" DrawAspect="Content" ObjectID="_1604818930"> </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_i1068" type="#_x0000_t75" style='width:37.8pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image087.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="50" height="21" v:shapes="_x0000_i1068" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image088.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1068" DrawAspect="Content" ObjectID="_1604818931"> </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">22、<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_i1104" type="#_x0000_t75" style='width:26.4pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image069.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="35" height="21" v:shapes="_x0000_i1104" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image133.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1104" DrawAspect="Content" ObjectID="_1604819177"> </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"">是相互独立且均服从正态分布</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:12.0pt;mso-text-raise:-12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1105" type="#_x0000_t75" style='width:40.2pt;height:30.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image134.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="54" height="41" v:shapes="_x0000_i1105" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image135.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1105" DrawAspect="Content" ObjectID="_1604819178"> </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"">的随机变量，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_i1106" type="#_x0000_t75" style='width:66pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image136.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="88" height="21" v:shapes="_x0000_i1106" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image137.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1106" DrawAspect="Content" ObjectID="_1604819179"> </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>