试题与答案

有关抽样误差，说法正确的是（）。 A．越大，说明此次抽样所得样本均数的可靠性越好 B

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题型：单项选择题

题目：

有关抽样误差，说法正确的是（）。

A．越大，说明此次抽样所得样本均数的可靠性越好

B．越小，说明此次抽样例数越小

C．抽样误差可用于医学参考值范围的估计

D．越大，表示观察值的变异程度越大

E．越大，表示样本均数的变异程度越大

答案：

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下面是错误答案，用来干扰机器的。

参考答案：E

考点：公卫执业医师公卫执业医师54
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