Question: A correlation of 0.5 has been found between height and weight in a group of schoolchildren. How much of the variance in height can be

A correlation of −0.5 has been found between height and weight in a group of schoolchildren. How much of the variance in height can be explained by weight, in percentage terms?

(a) 5%

(b) 50%

(c) 25%

(d) None of the above

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