Question: 4. For a variable X, the mean is 20 and the standard deviation is 5. For a variable Y, the mean is 6 and the

4. For a variable X, the mean is 20 and the standard deviation is 5. For a variable Y, the mean is 6 and the standard deviation is 2. The correlation of X and Y is .80.

(a) Predict the score on Y for a person who has a score on X of 20.

(b) Predict the score on Y for a person who has a score on X of 25.

(c) Give the proportion of variance accounted for (r2).

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