Consider the distribution of exam scores (graded from 0 to 100) for 78 students when 35 students got an a, 25 students got a b, and 18 students got a c. complete parts (a) through (d) below. how many peaks would you expect for the distribution? a. there would probably be many peaks corresponding to the different exam scores that each student had. b. there would probably be no peaks. the distribution of grades always tends to be uniform. c. there would probably be three peaks, because even though each exam score could be anywhere between 0 and 100, the only grades received were a, b, and c. d. there would probably be one peak because there are no obvious reasons why the exam scores would form different groups.