Mathematics
If the mean of the following data is 25, the value of p is equal to :
| x | f |
|---|---|
| 5 | 3 |
| 15 | p |
| 25 | 3 |
| 35 | 6 |
| 45 | 2 |
2
3
4
5
Related Questions
The mean of 100 observations is 50. If one of the observations was misread as 50 instead of 40, the correct mean is :
40
49.9
50
50.1
Consider the table given below :
Marks Number of students 0 – 10 12 10 – 20 18 20 – 30 27 30 – 40 20 40 – 50 17 50 – 60 6 The mean of the marks given above is :
6
18
27
28
If the mean of the following distribution is 27, then the value of p is :
Class Frequency 0 – 10 8 10 – 20 p 20 – 30 12 30 – 40 13 40 – 50 10 6
7
9
11