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苏·Xu · 2023年06月29日

NO.PZ2022071202000077

问题如下:

Question The distribution of all the distinct possible values for a statistic when calculated from samples of the same size randomly drawn from the same population is most accurately referred to as:

选项:

A.a discrete uniform distribution. B.a multivariate normal distribution. C.the sampling distribution of a statistic.

解释:

Solution

C is correct. The sampling distribution of a statistic (like a sample mean) is defined as the probability distribution of a given sample statistic when samples of the same size are randomly drawn from the same population.

A is incorrect. Discrete uniform distribution refers to the distribution of equally likely outcomes.

B is incorrect. Multivariate normal distribution specifies the probabilities for a group of related random variables.

请问这个知识点在什么地方?

1 个答案

星星_品职助教 · 2023年06月29日

同学你好,

如下,样本统计量(statistic)的分布叫做sampling distribution(of a statistic)

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