Answer:
Relative frequency of the (35 -38) class = 0.2 = 20.0%
Step-by-step explanation:
Relative frequency is a measure of comparing a variable's frequency with the total/cumulative frequency.
Mathematically, it is given as
Relative frequency = (frequency of variable)/(total or cumulative frequency)
Ages Number of students
15-18 2
19-22 2
23-26 8
27-30 2
31-34 10
35-38 6
To find the relative frequency for the class with lower class limit 35
From the table,
The frequency of the (35 - 38) class = 6
Total or cumulative frequency = sum of all the frequencies in the table = 2+2+8+2+10+6 = 30
Relative frequency of the (35 -38) class = 6/30 = 0.2 = 20.0%
We want to get the relative frequency for the class with a lower limit of 35, we will get that it is 20%.
To get it we need to get the quotient between the number of people with a lower limit of 35 (are 6 of these) and the total number of students (2 + 2 + 8 + 2 + 10 + 6 = 30), times 100%.
So here the relative frequency is just:
RF = (6/30)*100% = 20%
Meaning that 20% of the students are in the range from 35 to 38.
If you want to learn more about relative frequency, you can read:
