:7. For the first-year students at a certain law school, the correlation between LSAT scores and first-year scores was 0.60. Consider a first-year student whose percentile rank on the LSAT (among his classmates) was 90%. The best estimate of his percentile rank on the first year scores is closest to

a. 10%

b. 20%

c. 40%

d. 80%

e. 100%

(Assume that the scatter diagram is homoscedastic and football- shaped, with the distributions of all scores approximately normal)