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For a study of 1078 families: Average height of father = 68 inches, SD = 2.3 inches, Average height of son = 69 inches, SD

For a study of 1078 families:
Average height of father = 68 inches, SD = 2.3 inches,

Average height of son = 69 inches, SD = 2.5 inches,

Correlation coefficient = 0.5.

Of the sons of 69 inch fathers, about what percent were shorter than 71 inches?

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