I have a question:-
->Find the mean of the following distribution:
x:15 17 19 20+p 23
f: 2 3 4 5p 6
Asked by Amrut Kurtkoti | 10th Dec, 2014, 08:15: PM
Expert Answer:
Please check the question:
Question should be:
Find the value of p if the mean of the following distribution is 20.
x
15
17
19
20+p
23
f
2
3
4
5p
6
Solution:
Let us construct the following table:
x
f
15
2
30
17
3
51
19
4
76
20+p
5p
23
6
138
Given that mean is 20
We know that 
| x | 15 | 17 | 19 | 20+p | 23 |
| f | 2 | 3 | 4 | 5p | 6 |
| x | f | |
| 15 | 2 | 30 |
| 17 | 3 | 51 |
| 19 | 4 | 76 |
| 20+p | 5p | |
| 23 | 6 | 138 |
Answered by Vimala Ramamurthy | 11th Dec, 2014, 08:53: AM
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