成考院校在线答案
- 2023-02-12 [多选] <p class="MsoNormal" style="mso-pagination:widow-orphan;">28、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">下列平均数中，容易受数列中极端值影响的平均数有（）</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2023-02-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">36、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">相关系数越大，说明相关程度越高；相关系数越小，说明相关程度越低。（）</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2023-02-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">37、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">置信度（</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"><img width="36" height="20" src="http://wljy.whut.edu.cn:80/uploadfiles/word/tjxyl_bk003.files/tjxyl_bk00316160.png"></span>）反映了总体参数落在某个区间的概率为（<span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"><img width="36" height="20" src="http://wljy.whut.edu.cn:80/uploadfiles/word/tjxyl_bk003.files/tjxyl_bk00316282.png"></span>）（）<span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2023-02-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">35、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">在其他条件不变的情况下，置信度（1-α）越大，则区间估计的抽样推断的可靠性越高（ ）。</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2023-02-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">33、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">如果物价上涨10%，则现在100元钱只值原来的90元了。（）</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2023-02-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">34、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">将总体系列不同的综合指标排列起来就构成时间数列。（）</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2023-02-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">39、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">用几何法计算的平均发展速度的大小，与中间各期水平的大小无关。（）</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2023-02-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">40、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">在总离差平方和中，如果回归平方和所占比重大，而相应的剩余平方和和所占比重小，则两变量之间相关程度高（ ）。</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2023-02-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">31、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">相关系数r为0表示两个变量之间不存在任何关系（）</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2023-02-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">32、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">在对总体均值作假设检验时，在5%的显著性水平下，拒绝了</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"><img width="17" height="21" src="http://wljy.whut.edu.cn:80/uploadfiles/word/tjxyl_bk003.files/tjxyl_bk00315591.png"></span>则可以认为对原假设进行检验的P值小于5%（）<span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>