Advertisements
Advertisements
प्रश्न
Calculate man of the following: 4, 6, 6, 6, 7, 7, 7, 7, 8, 8, 9, 9, 11, 3
उत्तर
| x | f | fx |
| 3 | 1 | 3 |
| 4 | 1 | 4 |
| 6 | 3 | 18 |
| 7 | 4 | 28 |
| 8 | 2 | 16 |
| 9 | 2 | 18 |
| 11 | 1 | 11 |
| Total | 14 | 98 |
∴ Mean = `(sum"fx)/(sumf)`
Or
= `(98)/(14)` = 7.
APPEARS IN
संबंधित प्रश्न
The mean of 15 observations is 32. Find the resulting mean, if the observation is: Decreased by 7
Find the mean of 8, 12, 16, 22, 10 and 4. Find the resulting mean, if each of the observations, given above, be: increased by 25%
Find the mean of 8, 12, 16, 22, 10 and 4. Find the resulting mean, if each of the observations, given above, be: decreased by 40%
The mean of 18, 24, 15, 2x + 1 and 12 is 21. Find the value of x.
Find the mean and median of all the positive factors of 72.
The weight of the seven members of a family, in kilograms are given below:
20, 52, 56, 72, 64, 13, 80.
Find mean weight.
In History project, marks out of 20 were awarded to 8 students. The marks were as shown below:
14, 16, 18, 14, 16, 14, 12, 16
Find the mean marks.
The mean of 16 natural numbers is 48. Find the resulting mean, if each of the number is increased by 5
The mean of 16 natural numbers is 48. Find the resulting mean, if each of the number is multiplied by 4
The mean of 16 natural numbers is 48. Find the resulting mean, if each of the number is increased by 50%
