成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal">25、<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">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"">是一随机变量，</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_i1298" type="#_x0000_t75" style='width:12.6pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image470.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="17" height="25" v:shapes="_x0000_i1298" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image471.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1298" DrawAspect="Content" ObjectID="_1604819254"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">为任意实数，</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_i1299" type="#_x0000_t75" style='width:30.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image472.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="41" height="21" v:shapes="_x0000_i1299" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image473.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1299" DrawAspect="Content" ObjectID="_1604819255"> </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</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_i1300" type="#_x0000_t75" style='width:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image474.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1300" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image316.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1300" 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"">的数学期望，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">26、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">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: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_i1028" type="#_x0000_t75" style='width:54.6pt; height:15.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image001.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="73" height="21" v:shapes="_x0000_i1028" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image002.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1028" DrawAspect="Content" ObjectID="_1604818888"> </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" align="left" style="text-align:left;mso-pagination:widow-orphan; vertical-align:middle">19、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_19" o:spid="_x0000_i1043" type="#_x0000_t75" style='width:418.8pt;height:90.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds02.files/image019.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="558" height="121" v:shapes="图片_x0020_19" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image019.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">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"">若</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_i1036" type="#_x0000_t75" style='width:12pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image009.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="16" height="17" v:shapes="_x0000_i1036" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image010.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1036" DrawAspect="Content" ObjectID="_1604818950"> </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_i1037" type="#_x0000_t75" style='width:12pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image011.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="16" height="17" v:shapes="_x0000_i1037" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image012.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1037" DrawAspect="Content" ObjectID="_1604818951"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">之积为不可能事件，则称</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1038" type="#_x0000_t75" style='width:12pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image009.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="16" height="17" v:shapes="_x0000_i1038" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image010.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1038" DrawAspect="Content" ObjectID="_1604818952"> </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_i1039" type="#_x0000_t75" style='width:12pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image011.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="16" height="17" v:shapes="_x0000_i1039" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image012.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1039" DrawAspect="Content" ObjectID="_1604818953"> </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">36、<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_i1291" type="#_x0000_t75" style='width:10.8pt;height:9pt'> <v:imagedata src="xxdsb11.files/image376.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="12" v:shapes="_x0000_i1291" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image377.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"">为参数</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_i1292" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image363.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1292" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image378.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"">的动态分布，今测得</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_i1293" type="#_x0000_t75" style='width:10.8pt;height:9pt'> <v:imagedata src="xxdsb11.files/image376.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="12" v:shapes="_x0000_i1293" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image377.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"">的样本观测值为</span><span lang="EN-US" style="font-size:12.0pt">0.1,0.2,0.3,0.4</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"">，则参数</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_i1294" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image363.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1294" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image378.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"">的矩估计值</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_i1295" type="#_x0000_t75" style='width:9pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image379.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="22" v:shapes="_x0000_i1295" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image380.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>
- 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"">在假设检验中，关于两个正态总体方差的检验，检验采用的方法为（</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">31、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">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"">服从正态分布</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1160" type="#_x0000_t75" style='width:48pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image220.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="64" height="25" v:shapes="_x0000_i1160" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image113.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1160" DrawAspect="Content" ObjectID="_1604819076"> </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"">，则随着</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_i1161" type="#_x0000_t75" style='width:12pt;height:11.4pt' o:ole=""> <v:imagedata src="xxdsb07.files/image221.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="16" height="15" v:shapes="_x0000_i1161" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image222.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1161" DrawAspect="Content" ObjectID="_1604819077"> </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"">的增大，概率</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_i1162" type="#_x0000_t75" style='width:77.4pt;height:20.4pt' o:ole=""> <v:imagedata src="xxdsb07.files/image223.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="103" height="27" v:shapes="_x0000_i1162" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image224.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1162" DrawAspect="Content" ObjectID="_1604819078"> </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">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_i1095" type="#_x0000_t75" style='width:67.8pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image110.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="90" height="25" v:shapes="_x0000_i1095" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image084.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1095" DrawAspect="Content" ObjectID="_1604819010"> </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:14.0pt;mso-text-raise:-14.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1096" type="#_x0000_t75" style='width:54.6pt;height:33pt' o:ole=""> <v:imagedata src="xxdsb07.files/image111.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="73" height="44" v:shapes="_x0000_i1096" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image112.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1096" DrawAspect="Content" ObjectID="_1604819011"> </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" style="line-height:150%">33、<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">设函数</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_i1097" type="#_x0000_t75" style='width:34.8pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds04.files/image089.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="46" height="26" v:shapes="_x0000_i1097" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image090.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1097" DrawAspect="Content" ObjectID="_1604818875"> </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"">，方程组</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:18.0pt;mso-text-raise: -18.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1098" type="#_x0000_t75" style='width:124.8pt;height:43.2pt' o:ole=""> <v:imagedata src="xxds04.files/image091.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="166" height="58" v:shapes="_x0000_i1098" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image092.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1098" DrawAspect="Content" ObjectID="_1604818876"> </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"">的基础解系中含有</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%">1</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"">个向量，则必有（</span><span style="font-size:12.0pt;line-height: 150%"> </span><span style="font-size:12.0pt;line-height:150%;font-family: 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:150%">34、<span style="font-size:12.0pt; line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">设</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative;top:3.0pt; mso-text-raise:-3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1185" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image252.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1185" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image253.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"">个随机变量</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_i1186" type="#_x0000_t75" style='width:64.8pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image238.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="86" height="22" v:shapes="_x0000_i1186" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image239.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">是独立同分布，</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:14.0pt;mso-text-raise:-14.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1187" type="#_x0000_t75" style='width:123pt;height:31.8pt'> <v:imagedata src="xxdsb11.files/image254.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="164" height="42" v:shapes="_x0000_i1187" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image255.png"> <!--[endif]--></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_i1188" type="#_x0000_t75" style='width:24pt;height:15pt'> <v:imagedata src="xxdsb11.files/image256.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="32" height="20" v:shapes="_x0000_i1188" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image257.png"> <!--[endif]--></span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p> <p class="MsoNormal" style="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 style="position:relative; top:14.0pt;mso-text-raise:-14.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1189" type="#_x0000_t75" style='width:86.4pt;height:31.8pt'> <v:imagedata src="xxdsb11.files/image258.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="115" height="42" v:shapes="_x0000_i1189" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image259.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"">，则下列结论中，正确的是（</span><span style="font-size:12.0pt;line-height:150%"> </span><span style="font-size: 12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p>