Bluebook试题6 · 第 5 题

Bluebook试题6 · 原库模块 1 · Q5 原库参考解析

Scott selected 20 employees at random from all 400 employees at a company. He found that 16 of the employees in this sample are enrolled in exactly three professional development courses this year. Based on Scott's findings, which of the following is the best estimate of the number of employees at the company who are enrolled in exactly three professional development courses this year?

Bluebook试题6 · 第 5 题

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