In our school there are 137 students in Year 8, 152 in Year 9, 174 in Year 10, 168 in…

MATHEMATICS · Subjective · GCSE · Mathematics · Statistics · Statistics

Problem

In our school there are 137 students in Year 8, 152 in Year 9, 174 in Year 10, 168 in Year 11, and 121 in Year 12. A sample of 50 students is needed. How many should be randomly selected from each year?

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