成考院校在线答案
- 2024-03-05 [单选] <p class="MsoNormal" style="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";mso-font-kerning:0pt">已知</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_i1365" type="#_x0000_t75" style='width:13.2pt;height:13.8pt' o:ole=""> <v:imagedata src="xxds04.files/image327.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1365" 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_i1365" DrawAspect="Content" ObjectID="_1604819146"> </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";mso-font-kerning:0pt">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_i1366" type="#_x0000_t75" style='width:10.8pt;height:12pt' o:ole=""> <v:imagedata src="xxds04.files/image326.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="16" v:shapes="_x0000_i1366" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image293.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1366" DrawAspect="Content" ObjectID="_1604819147"> </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_i1367" type="#_x0000_t75" style='width:31.2pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds04.files/image478.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="42" height="26" v:shapes="_x0000_i1367" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image479.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1367" DrawAspect="Content" ObjectID="_1604819148"> </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:2.0pt;mso-text-raise: -2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1368" type="#_x0000_t75" style='width:13.2pt;height:13.8pt' o:ole=""> <v:imagedata src="xxds04.files/image327.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1368" 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_i1368" DrawAspect="Content" ObjectID="_1604819149"> </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"">的两个不同的特征值，</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_i1369" type="#_x0000_t75" style='width:30pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds04.files/image480.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="40" height="26" v:shapes="_x0000_i1369" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image481.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1369" DrawAspect="Content" ObjectID="_1604819150"> </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"">是分属于</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_i1370" type="#_x0000_t75" style='width:31.2pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds04.files/image478.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="42" height="26" v:shapes="_x0000_i1370" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image479.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1370" DrawAspect="Content" ObjectID="_1604819151"> </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"">的特征向量，则（</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%">19、<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_i1358" type="#_x0000_t75" style='width:13.2pt;height:13.8pt' o:ole=""> <v:imagedata src="xxds04.files/image423.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1358" 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_i1358" DrawAspect="Content" ObjectID="_1604819139"> </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"">为三阶矩阵，</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_i1359" type="#_x0000_t75" style='width:48pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds04.files/image466.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="64" height="26" v:shapes="_x0000_i1359" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image467.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1359" DrawAspect="Content" ObjectID="_1604819140"> </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"">为其特征值，当（</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"">）时，</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="position: relative;top:11.0pt;mso-text-raise:-11.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1360" type="#_x0000_t75" style='width:58.8pt;height:25.8pt' o:ole=""> <v:imagedata src="xxds04.files/image468.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="78" height="34" v:shapes="_x0000_i1360" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image469.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1360" DrawAspect="Content" ObjectID="_1604819141"> </o:OLEObject> </xml><![endif]--></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:20.0pt;mso-line-height-rule:exactly">21、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_141" o:spid="_x0000_i1163" type="#_x0000_t75" style='width:107.4pt;height:24.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image139.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="143" height="33" v:shapes="图片_x0020_141" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image139.png"> <!--[endif]--></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">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:7.0pt;mso-text-raise:-7.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1246" type="#_x0000_t75" style='width:35.4pt;height:20.4pt' o:ole=""> <v:imagedata src="xxdsb08.files/image376.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="47" height="27" v:shapes="_x0000_i1246" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image360.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1246" DrawAspect="Content" ObjectID="_1604819203"> </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_i1247" type="#_x0000_t75" style='width:37.8pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image377.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="50" height="21" v:shapes="_x0000_i1247" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image367.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1247" DrawAspect="Content" ObjectID="_1604819204"> </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_i1248" type="#_x0000_t75" style='width:56.4pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image378.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="75" height="21" v:shapes="_x0000_i1248" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image379.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1248" DrawAspect="Content" ObjectID="_1604819205"> </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">6、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_65" o:spid="_x0000_i1090" type="#_x0000_t75" style='width:289.8pt;height:44.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds02.files/image072.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="386" height="59" v:shapes="图片_x0020_65" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image072.png"> <!--[endif]--></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">11、<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_i1138" 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_i1138" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image154.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:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1139" type="#_x0000_t75" style='width:86.4pt;height:19.8pt'> <v:imagedata src="xxdsb11.files/image193.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="115" height="26" v:shapes="_x0000_i1139" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image194.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"">为取自</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_i1140" 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_i1140" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image154.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"">的容量为</span><span lang="EN-US" style="font-size:12.0pt">3</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"">的样本，则</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_i1141" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image195.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1141" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image196.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"">的三个估计量</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_i1142" type="#_x0000_t75" style='width:97.2pt;height:30pt'> <v:imagedata src="xxdsb11.files/image197.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="130" height="40" v:shapes="_x0000_i1142" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image198.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"">，</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_i1143" type="#_x0000_t75" style='width:58.2pt;height:30pt'> <v:imagedata src="xxdsb11.files/image199.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="78" height="40" v:shapes="_x0000_i1143" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image200.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"">，</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_i1144" type="#_x0000_t75" style='width:99pt;height:30pt'> <v:imagedata src="xxdsb11.files/image201.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="132" height="40" v:shapes="_x0000_i1144" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image202.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（</span><span style="font-size: 12.0pt"> </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="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">10、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">某种动物活</span><span lang="EN-US" style="font-size:12.0pt">20</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"">年的概率为</span><span lang="EN-US" style="font-size:12.0pt">0.8</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"">，活</span><span lang="EN-US" style="font-size:12.0pt">25</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"">年的概率为</span><span lang="EN-US" style="font-size:12.0pt">0.6</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"">，现有一只该动物已经活了</span><span lang="EN-US" style="font-size:12.0pt">20</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"">年，它能活到</span><span lang="EN-US" style="font-size:12.0pt">25</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"">年的概率是（</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"><span style="color:white"> <o:p></o:p></span></span></p>
- 2024-03-05 [单选] <p class="MsoNormal" style="line-height:150%">12、<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"">设总体</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_i1069" 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_i1069" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image002.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"">服从两点分布：</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_i1070" type="#_x0000_t75" style='width:194.4pt;height:15pt'> <v:imagedata src="xxdsb11.files/image079.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="259" height="20" v:shapes="_x0000_i1070" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image080.png"> <!--[endif]--></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_i1071" type="#_x0000_t75" style='width:56.4pt;height:19.8pt'> <v:imagedata src="xxdsb11.files/image053.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="75" height="26" v:shapes="_x0000_i1071" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image081.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"">为</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p> <p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="mso-tab-count:1"> </span><span style="mso-spacerun:yes"> </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"">其样本，则样本均值</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_i1072" type="#_x0000_t75" style='width:9pt;height:13.2pt'> <v:imagedata src="xxdsb11.files/image082.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="18" v:shapes="_x0000_i1072" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image083.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"">的期望</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_i1073" type="#_x0000_t75" style='width:36.6pt;height:15pt'> <v:imagedata src="xxdsb11.files/image084.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="49" height="20" v:shapes="_x0000_i1073" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image085.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 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">27、<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">A</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">B</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"">互为对立事件，且</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_i1115" type="#_x0000_t75" style='width:45.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image176.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="61" height="21" v:shapes="_x0000_i1115" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image177.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1115" DrawAspect="Content" ObjectID="_1604818979"> </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:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1116" type="#_x0000_t75" style='width:45.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image178.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="61" height="21" v:shapes="_x0000_i1116" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image179.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1116" DrawAspect="Content" ObjectID="_1604818980"> </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"">，则下列各式中错误的是（</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">39、<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">齐次线性方程组</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_i1169" type="#_x0000_t75" style='width:142.8pt;height:63pt' o:ole=""> <v:imagedata src="xxds04.files/image199.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="190" height="84" v:shapes="_x0000_i1169" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image200.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1169" DrawAspect="Content" ObjectID="_1604818948"> </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"">的自由未知量为（</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></p>