题目
题目

BU.510.601.K1.FA25 Quiz 1- Requires Respondus LockDown Browser

单项选择题

The number of defectives in 10 different groups of 50 observations each is the following: 5, 1, 1, 2, 3, 3, 1, 4, 2, 3. A larger sample of 500 observations is obtained by combining the 10 groups. Based on this combined sample, what is the sample proportion of defective items?

选项
A.0.05
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标准答案
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思路分析
We are given the number of defectives in 10 groups, each of 50 observations: 5, 1, 1, 2, 3, 3, 1, 4, 2, 3. First, sum the total number of defectives across all groups: 5 + 1 + 1 + 2 + 3 + 3 + 1 + 4 + 2 +......Login to view full explanation

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