成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal">14、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">某类钢板的制造规格规定，钢板重量的方差不得超过</span><span lang="EN-US" style="font-size:12.0pt">0.016(</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"">千克</span><span lang="EN-US" style="font-size:12.0pt">)<sup>2</sup></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"">，由</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"">块钢板组成的一个随机样本给出样本方差为</span><span lang="EN-US" style="font-size:12.0pt">0.025(</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"">千克</span><span lang="EN-US" style="font-size:12.0pt">)<sup>2</sup>.</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"">则在显著水平</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_i1336" type="#_x0000_t75" style='width:9pt;height:9pt'> <v:imagedata src="xxdsb11.files/image439.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="12" v:shapes="_x0000_i1336" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image440.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"">下，为检验钢板是否合格，用</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_i1337" type="#_x0000_t75" style='width:9pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image441.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="22" v:shapes="_x0000_i1337" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image442.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"">检验，则拒绝域为（</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" style="line-height:150%">26、<span style="font-size:12.0pt; line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt">已知</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="position: relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1123" type="#_x0000_t75" style='width:27pt;height:16.2pt' o:ole=""> <v:imagedata src="xxds04.files/image123.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="36" height="22" v:shapes="_x0000_i1123" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image124.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1123" DrawAspect="Content" ObjectID="_1604818902"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">为</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:3.0pt;mso-text-raise: -3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1124" type="#_x0000_t75" style='width:10.8pt;height:12pt' o:ole=""> <v:imagedata src="xxds04.files/image125.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="16" v:shapes="_x0000_i1124" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image004.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1124" DrawAspect="Content" ObjectID="_1604818903"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">阶方阵，</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:6.0pt;mso-text-raise: -6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1125" type="#_x0000_t75" style='width:1in;height:16.2pt' o:ole=""> <v:imagedata src="xxds04.files/image126.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="96" height="22" v:shapes="_x0000_i1125" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image127.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1125" DrawAspect="Content" ObjectID="_1604818904"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">且</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:3.0pt;mso-text-raise: -3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1126" type="#_x0000_t75" style='width:42.6pt;height:15pt' o:ole=""> <v:imagedata src="xxds04.files/image128.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="57" height="20" v:shapes="_x0000_i1126" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image129.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1126" DrawAspect="Content" ObjectID="_1604818905"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">则有（</span><span style="font-size:12.0pt;line-height:150%"> </span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">7、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-font-kerning: 0pt">若方程组</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative;top:28.0pt;mso-text-raise:-28.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1160" type="#_x0000_t75" style='width:97.8pt;height:63pt' o:ole=""> <v:imagedata src="xxds04.files/image185.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="130" height="84" v:shapes="_x0000_i1160" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image186.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1160" DrawAspect="Content" ObjectID="_1604818939"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">仅有零解，则（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">40、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_31" o:spid="_x0000_i1054" type="#_x0000_t75" style='width:441pt;height:61.8pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image030.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="588" height="82" v:shapes="图片_x0020_31" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image030.png"> <!--[endif]--></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">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";mso-font-kerning:0pt">下列命题正确的是（</span><span style="font-size:12.0pt;mso-font-kerning: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";mso-font-kerning: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">30、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">若事件</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"">，</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"">满足</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_i1110" type="#_x0000_t75" style='width:34.2pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb06.files/image166.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="46" height="17" v:shapes="_x0000_i1110" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image167.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1110" DrawAspect="Content" ObjectID="_1604818974"> </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"">，则下列中不一定成立的为（</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" style="line-height:150%">32、<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_i1244" type="#_x0000_t75" style='width:10.8pt;height:12pt' o:ole=""> <v:imagedata src="xxds03.files/image295.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="16" v:shapes="_x0000_i1244" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image264.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1244" DrawAspect="Content" ObjectID="_1604818970"> </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"">个未知量的齐次线性方程组</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:3.0pt;mso-text-raise: -3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1245" type="#_x0000_t75" style='width:40.2pt;height:15pt' o:ole=""> <v:imagedata src="xxds03.files/image296.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="54" height="20" v:shapes="_x0000_i1245" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image297.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1245" DrawAspect="Content" ObjectID="_1604818971"> </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"">有非零解的充分必要条件是（</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%;mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">33、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">设随机变量</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:3.0pt;mso-text-raise: -3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1197" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb10.files/image275.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1197" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image276.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</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_i1198" type="#_x0000_t75" style='width:97.2pt;height:16.8pt'> <v:imagedata src="xxdsb10.files/image277.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="130" height="22" v:shapes="_x0000_i1198" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image278.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"">，用切比雪夫不等式估计</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_i1199" type="#_x0000_t75" style='width:84pt;height:15pt'> <v:imagedata src="xxdsb10.files/image279.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="112" height="20" v:shapes="_x0000_i1199" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb10.files/image280.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 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">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";mso-font-kerning: 0pt">二次型矩阵</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative;top:45.0pt;mso-text-raise:-45.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1299" type="#_x0000_t75" style='width:67.8pt;height:97.2pt' o:ole=""> <v:imagedata src="xxds05.files/image344.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="90" height="130" v:shapes="_x0000_i1299" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image345.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1299" DrawAspect="Content" ObjectID="_1604819110"> </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"">对应的二次型为（</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>
- 2022-09-12 [单选] <p class="MsoNormal">40、<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:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1183" type="#_x0000_t75" style='width:34.2pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image258.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="46" height="21" v:shapes="_x0000_i1183" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image159.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1183" DrawAspect="Content" ObjectID="_1604819139"> </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"">在区域</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_i1184" type="#_x0000_t75" style='width:105pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image269.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="140" height="21" v:shapes="_x0000_i1184" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.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="_1604819140"> </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"">上服从均匀分布，</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_i1185" type="#_x0000_t75" style='width:30.6pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image271.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="41" height="25" v:shapes="_x0000_i1185" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image272.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1185" DrawAspect="Content" ObjectID="_1604819141"> </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</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_i1186" type="#_x0000_t75" style='width:34.2pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image258.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="46" height="21" v:shapes="_x0000_i1186" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image159.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1186" DrawAspect="Content" ObjectID="_1604819142"> </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"">关于</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_i1187" type="#_x0000_t75" style='width:11.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image273.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="15" height="17" v:shapes="_x0000_i1187" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image238.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1187" DrawAspect="Content" ObjectID="_1604819143"> </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"">的边缘概率密度，则</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_i1188" type="#_x0000_t75" style='width:36.6pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image274.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="49" height="25" v:shapes="_x0000_i1188" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image275.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1188" DrawAspect="Content" ObjectID="_1604819144"> </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>