成考院校在线答案
- 2022-09-12 [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">设</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_i1082" type="#_x0000_t75" style='width:52.2pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds03.files/image095.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="70" height="26" v:shapes="_x0000_i1082" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image096.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1082" DrawAspect="Content" ObjectID="_1604818806"> </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_i1083" type="#_x0000_t75" style='width:45pt;height:15pt' o:ole=""> <v:imagedata src="xxds03.files/image097.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="60" height="20" v:shapes="_x0000_i1083" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image098.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1083" DrawAspect="Content" ObjectID="_1604818807"> </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，则下列向量组中也可作为</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_i1084" type="#_x0000_t75" style='width:45pt;height:15pt' o:ole=""> <v:imagedata src="xxds03.files/image097.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="60" height="20" v:shapes="_x0000_i1084" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image098.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1084" DrawAspect="Content" ObjectID="_1604818808"> </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"">的基础解系的是（</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%">6、<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"">设一批产品有</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%">1000</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"">件，其中有</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%">50</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"">件次品，从中随机地、有放回地抽取</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%">500 <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"">件产品，</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_i1061" type="#_x0000_t75" style='width:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image072.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1061" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image002.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1061" DrawAspect="Content" ObjectID="_1604819016"> </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"">表示抽到次品的件数，则</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_i1062" type="#_x0000_t75" style='width:57.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image073.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="77" height="21" v:shapes="_x0000_i1062" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image074.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1062" DrawAspect="Content" ObjectID="_1604819017"> </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 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> <p class="MsoNormal"><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%">7、<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"">一副扑克牌去掉大、小王后还剩</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%">52</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"">张牌中一张一张有放回地取</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%">4</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"">张，则恰有</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"><span style="mso-tab-count:1"> </span>3</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"">张是黑桃的概率为（</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"><span style="color:white"> <o:p></o:p></span></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">35、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_156" o:spid="_x0000_i1178" type="#_x0000_t75" style='width:311.4pt;height:21.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image154.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="415" height="29" v:shapes="图片_x0020_156" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image154.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:150%">9、<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_i1251" 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_i1251" 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_i1251" DrawAspect="Content" ObjectID="_1604819031"> </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"">阶实对称矩阵</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_i1252" 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_i1252" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image285.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1252" DrawAspect="Content" ObjectID="_1604819032"> </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</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_i1253" 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_i1253" 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_i1253" DrawAspect="Content" ObjectID="_1604819033"> </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"">个行向量是一组正交单位向量组，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_i1254" 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_i1254" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image285.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1254" DrawAspect="Content" ObjectID="_1604819034"> </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 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">9、<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">12、<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"><span style="position:relative; top:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1095" type="#_x0000_t75" style='width:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image120.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1095" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image127.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1095" DrawAspect="Content" ObjectID="_1604819050"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">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_i1096" type="#_x0000_t75" style='width:37.8pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image128.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="50" height="21" v:shapes="_x0000_i1096" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image129.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1096" DrawAspect="Content" ObjectID="_1604819051"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">，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_i1097" type="#_x0000_t75" style='width:56.4pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image130.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="75" height="21" v:shapes="_x0000_i1097" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image131.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1097" DrawAspect="Content" ObjectID="_1604819052"> </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">13、<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_i1104" type="#_x0000_t75" style='width:26.4pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image069.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="35" height="21" v:shapes="_x0000_i1104" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image133.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1104" DrawAspect="Content" ObjectID="_1604819177"> </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"">是相互独立且均服从正态分布</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:12.0pt;mso-text-raise:-12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1105" type="#_x0000_t75" style='width:40.2pt;height:30.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image134.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="54" height="41" v:shapes="_x0000_i1105" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image135.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1105" DrawAspect="Content" ObjectID="_1604819178"> </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"">的随机变量，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_i1106" type="#_x0000_t75" style='width:66pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image136.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="88" height="21" v:shapes="_x0000_i1106" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image137.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1106" DrawAspect="Content" ObjectID="_1604819179"> </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:20.0pt;mso-line-height-rule:exactly">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";mso-font-kerning:0pt">下列结论正确的是（</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">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"">和</span><span lang="EN-US" style="font-size:12.0pt">Y</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">相互独立，且都服从</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_i1053" type="#_x0000_t75" style='width:45.6pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image049.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="61" height="25" v:shapes="_x0000_i1053" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image050.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1053" DrawAspect="Content" ObjectID="_1604819126"> </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"">，若</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_i1054" type="#_x0000_t75" style='width:129pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image051.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="172" height="21" v:shapes="_x0000_i1054" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image052.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1054" DrawAspect="Content" ObjectID="_1604819127"> </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"">，其中</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_i1055" type="#_x0000_t75" style='width:20.4pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image053.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="27" height="21" v:shapes="_x0000_i1055" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image054.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1055" DrawAspect="Content" ObjectID="_1604819128"> </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"">为常数，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_i1056" type="#_x0000_t75" style='width:21pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image055.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="28" height="25" v:shapes="_x0000_i1056" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image056.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1056" DrawAspect="Content" ObjectID="_1604819129"> </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>