Question

Scores on the 1995 SAT verbal aptitude test among Kentucky high school seniors were normally distributed with an average of 420 and the SD of 80.

Scores on the 1995 SAT quantitative aptitude test among Kentucky high school seniors were normally distributed with an average of 440 and SD of 60.

The scatter diagram is football shaped, and the correlation coefficient is r=0.8

For those students who scored 500 on the verbal aptitude test, estimate the average quantitative aptitude test score.

I know that the answer for this question is 488 but I don't know what formula to use and how to set it up.

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