Find the missing value of p for the following distribution, whose mean is 12.58.
|
x: |
5 |
8 |
10 |
12 |
p |
20 |
25 |
|
f: |
2 |
5 |
8 |
22 |
7 |
4 |
2 |
1
13
2
10
3
20
4
15