Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 100. Fill in the blanks;

explain briefly.

(a) A student who scored 400 on the Math SAT was at the ___th per-

centile of the score distribution.

(b) To be at the 75th percentile of the distribution, a student needed a score of about ___ points on the Math SAT. p-968