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Hello, I am needing validation of an answer. A correlation of .7 was found between time spent studying and percentage on an exam. What is

Hello, I am needing validation of an answer.

A correlation of .7 was found between time spent studying and percentage on an exam. What is the proportion of variance in exam scores that cane be explained by time spent studying? Either, .70; .49; .30. or .7?

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