A law school finds the following relationship between LSAT scores and first-year GPAs: average LSAT score 165, SD 10, average first-year GPA 65, SD 5, r 0.6The scatter diagram is football-shaped.One of these students is chosen at random, and you are asked to estimate her first-year GPA, without being told her LSAT score.

1. What would you estimate for her first-year GPA? Answer:
2. What r.m.s. error would you expect for this estimate?

i. 5 ii. 10 iii. 10.625 iv. 10.6210

Choose one: i ii iii iv.

Later you find that the student's LSAT score is 175.

1. Now what would you estimate for her first-year GPA? Answer:
2. What r.m.s. error would you expect for this estimate?