Question

12.
Find the mean of the following frequency distribution using assume mean method.
Class
0-10
10 - 20
20 - 30
30 - 40
40 - 50
Frequency
7
10
15
8
10​

Answer 1

Answer:

mean = sum of frequencies/ Total no. of frequency

therefore

x= 7+10+15+8+10/5

x=50/5

x=10

Thus mean of the observation is 10