Question

Find the mean of the following distribution
6 12
12 - 18
06
18 - 24
24 – 30
Class intervals
6
12
2
10
7
Frequency​

Answer 1

Answer:

15.75

Step-by-step explanation:

Answer:-

Class interval Frequency x

i

f

i

x

i

0-6 7 3 21

6-12 5 9 45

12-18 10 15 150

18-24 12 21 252

24-30 6 27 162

Σf

i

=40 Σf

i

x

i

=630

mean=

Σf

i

Σf

i

x

i

=

40

630

=15.75