Question

Ages	Number of students
15-18	2
19-22	8
23-26	3
27-30	10
31-34	9
35-38	4

Find the relative frequency for the class with lower class limit 31
Relative Frequency =  %
Give your answer as a percent, rounded to two decimal places

Answer 1

The “relative frequency” of each class is the proportion of the data that falls in that class. It can be calculated for a data set of size n by:

Relative frequency = Class frequency /Sample size = f / n .here n=

relative frequency for the class with lower class limit 31 = 9/36 =0.25=25%

Please find the below table.

Ages	Number of students	Midpoint	Relative frequency	Cumulative
15-18	2	16.5	0.056	2.000
19-22	8	20.5	0.222	10.000
23-26	3	24.5	0.083	13.000
27-30	10	28.5	0.278	23.000
31-34	9	32.5	0.250	32.000
35-38	4	36.5	0.111	36.000