成考院校在线答案
- 2024-03-05 [单选] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan; vertical-align:middle">26、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_2" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:267.6pt;height:50.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image002.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="357" height="67" v:shapes="图片_x0020_2" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image002.png"> <!--[endif]--></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">14、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_121" o:spid="_x0000_i1143" type="#_x0000_t75" style='width:6in;height:59.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image119.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="576" height="79" v:shapes="图片_x0020_121" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image119.png"> <!--[endif]--></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">37、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_32" o:spid="_x0000_i1055" type="#_x0000_t75" style='width:322.8pt;height:36.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image031.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="430" height="49" v:shapes="图片_x0020_32" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image031.png"> <!--[endif]--></span></p>
- 2024-03-05 [单选] <p class="MsoNormal" style="margin-left:30.0pt;text-indent:-30.0pt;mso-char-indent-count: -2.5;line-height:150%">39、<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"">单个正态总体均值的假设检验：</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_i1386" type="#_x0000_t75" style='width:124.8pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image491.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="166" height="22" v:shapes="_x0000_i1386" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image492.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">，</span><span 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_i1387" type="#_x0000_t75" style='width:15pt;height:15pt'> <v:imagedata src="xxdsb11.files/image460.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="20" height="20" v:shapes="_x0000_i1387" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image461.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"">已知，</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p> <p class="MsoNormal" style="margin-left:30.0pt;text-indent:-30.0pt;mso-char-indent-count: -2.5;line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height: 150%"><span style="mso-tab-count:1"> </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"">则检验统计量和拒绝域分别为（</span><span style="font-size:12.0pt;line-height:150%"> </span><span style="font-size: 12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal" 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"">每张奖券<span class="GramE">中尾奖的</span>概率为</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="position: relative;top:12.0pt;mso-text-raise:-12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1093" type="#_x0000_t75" style='width:15.6pt;height:30.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image125.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="21" height="41" v:shapes="_x0000_i1093" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image126.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1093" DrawAspect="Content" ObjectID="_1604819048"> </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"">，某人购买了</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%">20</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"">张号码杂乱的奖券，则中尾奖</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><span style="mso-spacerun:yes"> </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"">的张数</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_i1094" 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_i1094" 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_i1094" DrawAspect="Content" ObjectID="_1604819049"> </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（</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"">）分布。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <span style="font-family:"font-size:10.5pt;">6、<img width="168" height="38" src="data:image/png;base64,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"></span>
- 2024-03-05 [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</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_i1211" type="#_x0000_t75" style='width:34.2pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image306.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="46" height="21" v:shapes="_x0000_i1211" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image282.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1211" DrawAspect="Content" ObjectID="_1604819285"> </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"">为二维连续随机变量，则</span><span lang="EN-US" style="font-size:12.0pt"><span style="mso-tab-count:1"> </span><span style="position:relative;top:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1212" type="#_x0000_t75" style='width:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image278.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1212" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image266.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1212" DrawAspect="Content" ObjectID="_1604819286"> </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_i1213" type="#_x0000_t75" style='width:11.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image279.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="15" height="17" v:shapes="_x0000_i1213" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image280.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1213" DrawAspect="Content" ObjectID="_1604819287"> </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"">不相关的充分必要条件是（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal" 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"">设</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_i1208" type="#_x0000_t75" style='width:38.4pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image312.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="51" height="21" v:shapes="_x0000_i1208" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image313.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1208" DrawAspect="Content" ObjectID="_1604819164"> </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"">是随机向量</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_i1209" type="#_x0000_t75" style='width:34.2pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image314.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="46" height="21" v:shapes="_x0000_i1209" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image301.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1209" DrawAspect="Content" ObjectID="_1604819166"> </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"">的联合分布函数，则关于</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_i1210" type="#_x0000_t75" style='width:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image315.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1210" 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_i1210" DrawAspect="Content" ObjectID="_1604819167"> </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"">的边际分布函数</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="position:relative;top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1211" type="#_x0000_t75" style='width:31.8pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb08.files/image317.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="42" height="25" v:shapes="_x0000_i1211" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image318.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1211" DrawAspect="Content" ObjectID="_1604819168"> </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 style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2024-03-05 [单选] <p class="MsoNormal">18、<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"">服从参数</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_i1173" type="#_x0000_t75" style='width:29.4pt;height:14.4pt' o:ole=""> <v:imagedata src="xxdsb07.files/image245.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="39" height="19" v:shapes="_x0000_i1173" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image246.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1173" DrawAspect="Content" ObjectID="_1604819088"> </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"">的泊松分布，</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_i1174" type="#_x0000_t75" style='width:27pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image247.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="36" height="21" v:shapes="_x0000_i1174" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image248.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1174" DrawAspect="Content" ObjectID="_1604819089"> </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">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"">的分布函数，则下列正确的是（</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>
- 2024-03-05 [单选] <p class="MsoNormal">22、<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;position:relative;top:5.0pt;mso-text-raise: -5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1321" type="#_x0000_t75" style='width:63pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image411.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="84" height="22" v:shapes="_x0000_i1321" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image412.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"">，且</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_i1322" type="#_x0000_t75" style='width:13.2pt;height:13.2pt'> <v:imagedata src="xxdsb11.files/image415.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1322" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image416.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"">未知，对均值作区间估计，置信度为</span><span lang="EN-US" style="font-size:12.0pt">95%</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"">置信区间是（</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>