成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal">37、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">下列函数中可以作为某个二维随机变量的分布函数的是（</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:150%">16、<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">在三维向量空间</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:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <v:stroke joinstyle="miter"></v:stroke> <v:formulas> <v:f eqn="if lineDrawn pixelLineWidth 0"></v:f> <v:f eqn="sum @0 1 0"></v:f> <v:f eqn="sum 0 0 @1"></v:f> <v:f eqn="prod @2 1 2"></v:f> <v:f eqn="prod @3 21600 pixelWidth"></v:f> <v:f eqn="prod @3 21600 pixelHeight"></v:f> <v:f eqn="sum @0 0 1"></v:f> <v:f eqn="prod @6 1 2"></v:f> <v:f eqn="prod @7 21600 pixelWidth"></v:f> <v:f eqn="sum @8 21600 0"></v:f> <v:f eqn="prod @7 21600 pixelHeight"></v:f> <v:f eqn="sum @10 21600 0"></v:f> </v:formulas> <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"></v:path> <o:lock v:ext="edit" aspectratio="t"></o:lock> </v:shapetype><v:shape id="_x0000_i1025" type="#_x0000_t75" style='width:16.8pt; height:16.8pt' o:ole=""> <v:imagedata src="xxds03.files/image001.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="22" height="22" v:shapes="_x0000_i1025" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image002.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1025" DrawAspect="Content" ObjectID="_1604818749"> </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"">中，向量</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_i1026" type="#_x0000_t75" style='width:70.8pt;height:21pt' o:ole=""> <v:imagedata src="xxds03.files/image003.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="94" height="28" v:shapes="_x0000_i1026" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image004.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1026" DrawAspect="Content" ObjectID="_1604818750"> </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"">在基</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_i1027" type="#_x0000_t75" style='width:148.2pt;height:21pt' o:ole=""> <v:imagedata src="xxds03.files/image005.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="198" height="28" v:shapes="_x0000_i1027" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image006.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1027" DrawAspect="Content" ObjectID="_1604818751"> </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"">，</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_i1028" type="#_x0000_t75" style='width:73.2pt;height:21pt' o:ole=""> <v:imagedata src="xxds03.files/image007.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="98" height="28" v:shapes="_x0000_i1028" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image008.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1028" DrawAspect="Content" ObjectID="_1604818752"> </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"">下的坐标为（</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>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">39、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_116" o:spid="_x0000_i1138" type="#_x0000_t75" style='width:175.8pt;height:24.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image114.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="234" height="33" v:shapes="图片_x0020_116" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image114.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" style="line-height:20.0pt;mso-line-height-rule:exactly">2、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_100" o:spid="_x0000_i1125" type="#_x0000_t75" style='width:372pt;height:21pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds02.files/image107.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="496" height="28" v:shapes="图片_x0020_100" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image107.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">1、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">假设事件</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_i1195" 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_i1195" 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_i1195" DrawAspect="Content" ObjectID="_1604819060"> </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"">和</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_i1196" 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_i1196" 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_i1196" DrawAspect="Content" ObjectID="_1604819061"> </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"">满足</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_i1197" type="#_x0000_t75" style='width:59.4pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image280.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="79" height="21" v:shapes="_x0000_i1197" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image281.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1197" DrawAspect="Content" ObjectID="_1604819062"> </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 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:150%">3、<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">设三阶方阵</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_i1085" type="#_x0000_t75" style='width:13.2pt;height:13.8pt' o:ole=""> <v:imagedata src="xxds05.files/image030.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1085" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image004.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1085" DrawAspect="Content" ObjectID="_1604818894"> </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"">的特征值为</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_i1086" type="#_x0000_t75" style='width:39pt;height:16.8pt' o:ole=""> <v:imagedata src="xxds05.files/image063.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="52" height="22" v:shapes="_x0000_i1086" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image064.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1086" DrawAspect="Content" ObjectID="_1604818895"> </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"">，对应的特征向量为</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_i1087" type="#_x0000_t75" style='width:52.2pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds05.files/image065.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="70" height="26" v:shapes="_x0000_i1087" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image066.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1087" DrawAspect="Content" ObjectID="_1604818896"> </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"">，若</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_i1088" type="#_x0000_t75" style='width:24pt;height:13.8pt' o:ole=""> <v:imagedata src="xxds05.files/image067.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="32" height="18" v:shapes="_x0000_i1088" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image068.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1088" DrawAspect="Content" ObjectID="_1604818897"> </o:OLEObject> </xml><![endif]--><span style="position:relative;top:6.0pt;mso-text-raise: -6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1089" type="#_x0000_t75" style='width:63pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds05.files/image069.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="84" height="26" v:shapes="_x0000_i1089" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image070.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1089" DrawAspect="Content" ObjectID="_1604818898"> </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</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_i1090" type="#_x0000_t75" style='width:51pt;height:16.8pt' o:ole=""> <v:imagedata src="xxds05.files/image071.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="68" height="22" v:shapes="_x0000_i1090" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image072.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1090" DrawAspect="Content" ObjectID="_1604818899"> </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>
- 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";mso-font-kerning: 0pt">已知</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_i1289" type="#_x0000_t75" style='width:102pt;height:63pt' o:ole=""> <v:imagedata src="xxds05.files/image324.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="136" height="84" v:shapes="_x0000_i1289" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image325.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1289" DrawAspect="Content" ObjectID="_1604819100"> </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"">是正定矩阵，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>
- 2022-09-12 [单选] <p class="MsoNormal">35、<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:5.0pt;mso-text-raise: -5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1257" type="#_x0000_t75" style='width:64.8pt;height:16.8pt'> <v:imagedata src="xxdsb10.files/image372.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="86" height="22" v:shapes="_x0000_i1257" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image373.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_i1258" type="#_x0000_t75" style='width:26.4pt;height:16.8pt'> <v:imagedata src="xxdsb10.files/image374.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="35" height="22" v:shapes="_x0000_i1258" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image375.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"">已知，</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_i1259" type="#_x0000_t75" style='width:64.8pt;height:16.8pt'> <v:imagedata src="xxdsb10.files/image376.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="86" height="22" v:shapes="_x0000_i1259" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image377.png"> <!--[endif]--></span><span lang="EN-US" style="font-size:12.0pt"><span style="mso-spacerun:yes"> </span><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1260" type="#_x0000_t75" style='width:34.8pt;height:13.2pt'> <v:imagedata src="xxdsb10.files/image378.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="46" height="18" v:shapes="_x0000_i1260" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image379.png"> <!--[endif]--></span></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"">为来自总体</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_i1261" type="#_x0000_t75" style='width:10.8pt;height:9pt'> <v:imagedata src="xxdsb10.files/image380.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="12" v:shapes="_x0000_i1261" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image341.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"">的样本，</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_i1262" type="#_x0000_t75" style='width:10.8pt;height:13.2pt'> <v:imagedata src="xxdsb10.files/image381.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="18" v:shapes="_x0000_i1262" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image382.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"">为样本均值，</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_i1263" type="#_x0000_t75" style='width:9pt;height:15pt'> <v:imagedata src="xxdsb10.files/image383.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="20" v:shapes="_x0000_i1263" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image384.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"">为样本方差，则下列统计量中服从</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_i1264" type="#_x0000_t75" style='width:6.6pt;height:13.2pt'> <v:imagedata src="xxdsb10.files/image385.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="9" height="18" v:shapes="_x0000_i1264" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image386.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"">分布的是（</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>
- 2022-09-12 [单选] <p class="MsoNormal">16、<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_i1146" type="#_x0000_t75" style='width:175.2pt;height:54pt' o:ole=""> <v:imagedata src="xxds04.files/image165.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="234" height="72" v:shapes="_x0000_i1146" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image166.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1146" DrawAspect="Content" ObjectID="_1604818925"> </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"">有非零解，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>
- 2022-09-12 [单选] <p class="MsoNormal">16、<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_i1046" type="#_x0000_t75" style='width:57.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb10.files/image037.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="77" height="21" v:shapes="_x0000_i1046" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image038.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1046" DrawAspect="Content" ObjectID="_1604906022"> </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_i1047" type="#_x0000_t75" style='width:55.2pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb10.files/image039.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="74" height="21" v:shapes="_x0000_i1047" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image040.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1047" DrawAspect="Content" ObjectID="_1604906023"> </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>