Homework: 2-1 Frequency Distributions for Organizing and Sum

Question

A frequency table of grades has five classes​ (A, B,​ C, D,​ F) with frequencies of

4, 12, 13, 7, and 3 respectively. Using​ percentages, what are the relative frequencies of the five​ classes?

Complete the table.

Grade	Frequency	Relative frequency
A	4

​%
B	12

​%
C	13

​%
D	7

​%
F	3

​%

​(Round to two decimal places as​ needed.)

Answer 1

The find the relative frequencies, divide the number of students in each class (A, B, C, D, or F) by the total number of students in all of the classes. Total = 4 + 12 + 13 + 7 + 3 = 39

Relative frequencies:

A) 4 / 39 ≈ 0.1026 or 10.26%

B) 12 / 39 ≈ 0.3077 or 30.77%

C) 13 / 39 ≈ 0.3333 or 33.33%

Can you use the same method to find the relative frequencies for D and F?