2024年5月北美A卷 · 第 12 题

2024年5月北美A卷 · 原库模块 2 · Q12 原库参考解析

Data set A: 24,34,44,54,64
Data set A, which consists of the 5 values shown, has a mean of 44 and a standard deviation of approximately 14.10. Data set B consists of the 5 values from data set A and one additional value,k. For which of the following values of k will the standard deviation of data set B be less than the standard deviation of data set A?

2024年5月北美A卷 · 第 12 题

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