Question

The frequency table below shows the amount of students that scored within a certain grade range on the final exam in English

Grade No.of students
A 4
B 6
C 4
D 3
F 3

A. Calculate the relative frequencies of each grade
B. Using the relative frequencies what grade did the most students receive?

Answer 1

Explanation:

Answer 2

A. A - 0.2, B - 0.3, C - 0.2, D - 0.15, E - 0.15

B. Grade B

Explanation:

A. Total number of students = 4 + 6 + 4 + 3 + 3 = 20

So the relative frequency of each grade can be computed as the ratio of number of students with the grade and the total number of students.

A : 4/20 = 0.2

B : 6/20 = 0.3

C : 4/20 = 0.2

D : 3/20 = 0.15

E : 3/20 = 0.15

B. Among the grades, grade B has the highest relative frequency of 0.3. Hence Grade B received the most number of students.