Question

If the mean of the following frequency distribution is 8, find the value of p.
x
3
5
7
9
11
13

f
6
8
15
p
8
4

Answer 1

By the problem,
6+8+15+p+8+4/ 6 = 8
=> 41 + p = 8*6
=>p = 48 - 41
=> p = 7

Hope this helps :)

Answer 2

hope its help u...........