成考院校在线答案
- 2022-09-12 [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</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_i1232" type="#_x0000_t75" style='width:57.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image321.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="77" height="21" v:shapes="_x0000_i1232" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image322.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1232" DrawAspect="Content" ObjectID="_1604819307"> </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:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1233" type="#_x0000_t75" style='width:54.6pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image323.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="73" height="17" v:shapes="_x0000_i1233" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image324.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1233" DrawAspect="Content" ObjectID="_1604819308"> </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:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1234" type="#_x0000_t75" style='width:11.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image325.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="15" height="17" v:shapes="_x0000_i1234" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image280.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1234" DrawAspect="Content" ObjectID="_1604819309"> </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"">服从于（</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"">）分布</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">5、<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:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1135" type="#_x0000_t75" style='width:140.4pt;height:19.2pt' o:ole=""> <v:imagedata src="xxdsb08.files/image188.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="187" height="26" v:shapes="_x0000_i1135" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image189.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1135" DrawAspect="Content" ObjectID="_1604819091"> </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"">，且</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_i1136" type="#_x0000_t75" style='width:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image183.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1136" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image127.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1136" DrawAspect="Content" ObjectID="_1604819092"> </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_i1137" type="#_x0000_t75" style='width:11.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image184.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="15" height="17" v:shapes="_x0000_i1137" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image185.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1137" DrawAspect="Content" ObjectID="_1604819093"> </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"">相互独立，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><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">15、<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>
- 2022-09-12 [单选] <p class="MsoNormal">34、<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_i1066" type="#_x0000_t75" style='width:79.2pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb10.files/image070.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="106" height="25" v:shapes="_x0000_i1066" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image071.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1066" DrawAspect="Content" ObjectID="_1604906042"> </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"">，则服从</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_i1067" type="#_x0000_t75" style='width:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb10.files/image047.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1067" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image002.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1067" DrawAspect="Content" ObjectID="_1604906043"> </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"">）分布</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:150%">8、<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">下列二阶方阵中可对角化的是（</span><span style="font-size:12.0pt;line-height:150%;mso-font-kerning:0pt"> </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";mso-font-kerning: 0pt">）</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%; mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">21、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">在下列结果中，构成概率分布的是（</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>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">27、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_136" o:spid="_x0000_i1158" type="#_x0000_t75" style='width:371.4pt;height:25.8pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image134.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="495" height="34" v:shapes="图片_x0020_136" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image134.png"> <!--[endif]--></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2022-09-12 [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"">已知随机变量</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_i1134" type="#_x0000_t75" style='width:57.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image173.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="77" height="21" v:shapes="_x0000_i1134" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image174.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1134" 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"">，则随机变量</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_i1135" type="#_x0000_t75" style='width:54.6pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image175.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="73" height="17" v:shapes="_x0000_i1135" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image176.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1135" 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"">的概率密度</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1136" type="#_x0000_t75" style='width:40.2pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image177.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="54" height="25" v:shapes="_x0000_i1136" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image178.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1136" DrawAspect="Content" ObjectID="_1604819051"> </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>
- 2022-09-12 [单选] <p class="MsoNormal">28、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">一枚硬币投掷两次，令</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1040" type="#_x0000_t75" style='width:24pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image031.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="32" height="25" v:shapes="_x0000_i1040" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image032.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1040" DrawAspect="Content" ObjectID="_1604818903"> </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"">“第</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_i1041" type="#_x0000_t75" style='width:6.6pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image033.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="9" height="17" v:shapes="_x0000_i1041" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image034.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1041" DrawAspect="Content" ObjectID="_1604818904"> </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"">次正面朝上”</span><span style="font-size:12.0pt"> <span lang="EN-US"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1042" type="#_x0000_t75" style='width:41.4pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image035.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="55" height="21" v:shapes="_x0000_i1042" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image036.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1042" DrawAspect="Content" ObjectID="_1604818905"> </o:OLEObject> </xml><![endif]--></span></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"">，则“至多有一次正面朝上可表示为（</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>
- 2022-09-12 [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_i1273" type="#_x0000_t75" style='width:10.8pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image001.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="14" v:shapes="_x0000_i1273" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image333.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"">服从泊松分布：</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:12.0pt;mso-text-raise:-12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1274" type="#_x0000_t75" style='width:162.6pt;height:30pt'> <v:imagedata src="xxdsb11.files/image355.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="217" height="40" v:shapes="_x0000_i1274" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image356.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:3.0pt;mso-text-raise:-3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1275" type="#_x0000_t75" style='width:24pt;height:13.2pt'> <v:imagedata src="xxdsb11.files/image357.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="32" height="18" v:shapes="_x0000_i1275" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image358.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_i1276" type="#_x0000_t75" style='width:64.8pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image335.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="86" height="22" v:shapes="_x0000_i1276" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image336.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，记</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:14.0pt;mso-text-raise:-14.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1277" type="#_x0000_t75" style='width:63pt;height:30pt'> <v:imagedata src="xxdsb11.files/image359.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="84" height="40" v:shapes="_x0000_i1277" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image360.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"">，则下面几种说法错误的是（</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>