Question

If the mean of the following distribution is 7.5, find the missing frequency f:
variable
5
6
7
8
9
10
11
12
frequency
20
17
f
10
8
6
7
6
plz solve this...​

Answer 1

Answer:

variable: frequency(f),fx.5,20,100.

• 6,17,102.7,f,7f.8,10,80.9,8,72.10,6,60.11,7,77.12,6,72,{f=74}+f,563+7f..

Answer 2

Answer:

can not understand your question