15. In a sample of 500 children, 200 came from higher income group, and the rest from lower income group. The number of delinquent children in these groups respectively was 25 and 100 Calculate the coefficient of association between delinquency and income groups. mue iof ad 1.

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A: Given: Age of pet owners 16 16 24 16 17 30 55 18 25 17 20 21

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