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There are 18 boys in a class of 39 pupils. How many boys should be in a sample of 15 from the class?

There are 18 boys in a class of 39 pupils. How many boys should be in a sample of 15 from the class?
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There are 18 boys in a class of 39 pupils. How many boys should be in a sample of 15 from the class?

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User Mivk
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well, when you use a calculator you get a long number so by rounding up i would say around 7 boys. The actual number is around 6.92...
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User Jarsen
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