Find the mean of each of the following frequency distributions:
class interval: 0-8 8-16 16-24 24-32 32-40
Frequency: 5 6 4 3 2
Answers
Answer:
Mean = 16.4
Step-by-step explanation:
We are given the following frequency distribution below;
Class Interval Frequency (f) X X*f
0 - 8 5 4 20
8 - 16 6 12 72
16 - 24 4 20 80
24 - 32 3 28 84
32 - 40 2 36 72
∑f = 20 ∑X*f = 328
Mean of the data, X bar =
= = 16.4 .
Therefore, mean of the following frequency distribution is 16.4 .