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25 September, 15:26

A population of middle school students contains 160 sixth graders, 180 seventh graders, and 140 eighth graders. Nine seventh graders were part of a random sample of the population chosen to participate in a survey. For the sample to accurately represent the population, about how many sixth graders should be chosen?

7

8

14

16

+1
Answers (2)
  1. 25 September, 18:49
    0
    The correct answer is 8
  2. 25 September, 19:03
    0
    This will take some time but use proportions
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