Question

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.

Answer 1

I want to go back to collage

Answer 2

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.

Explanation:

Since, scores are indicated by grades and here students get only three grades i.e. A, B and C.

Thus, there will be only three peaks and rest points are remain constant.

Hence, option C is the only correct option i.e. 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.