总体均值为50，标准差为8，从此总体中随机抽取样本容量为64的样本，则样本均值和抽样分布的标准误差分别为（）。 -题库考试答案搜索网

总体均值为50，标准差为8，从此总体中随机抽取样本容量为64的样本，则样本均值和抽样分布的标准误差分别为（）。

单选题

2021-07-18 00:08

A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: " lang="EN-US">50</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: ">，<span lang="EN-US">8 </span></span>
B、<span style="FONT-FAMILY: ; FONT-SIZE: 12pt" lang="EN-US">50</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: ">，</span><span style="FONT-FAMILY: ; FONT-SIZE: 12pt" lang="EN-US">1</span>
C、<span style="FONT-FAMILY: ; FONT-SIZE: 12pt" lang="EN-US">50</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: ">，</span><span style="FONT-FAMILY: ; FONT-SIZE: 12pt" lang="EN-US">4</span>
D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: " lang="EN-US">8</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: ">，<span lang="EN-US">8</span></span>

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正确答案

B

试题解析

标签：教育学专升本教育统计与测量作业1

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