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Find the mean of 3, 7, 5, 5, 10. Year groups 91011 Total Girls 1011 19 40 Boys 10 15 21 46 Total 20 26 40 86 What is the probability a boy from year 9.
Find the mean of 3, 7, 5, 5, 10. Year groups 91011 Total Girls 1011 19 40 Boys 10 15 21 46 Total 20 26 40 86 What is the probability a boy from year 9.
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