Question: 12.85 Height and weight Suppose the correlation between height and weight is 0.50 for a sample of males in elementary school and 0.50 for a

12.85 Height and weight Suppose the correlation between height and weight is 0.50 for a sample of males in elementary school and 0.50 for a sample of males in middle school.

If we combine the samples, explain why the correlation will probably be larger than 0.50.

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