Advertisements
Advertisements
प्रश्न
Find the mean of x + 3, x + 5, x + 7, x + 9 and x + 11.
उत्तर
The given values are x + 3, x + 5, x + 7, x + 9, x + 11
We know the mean is given by,
Mean = `"Sum of the elements"/"Total number of elements"`
Here, the number of observations = 5.
`"Mean" = ( x + 3 + x + 5 + x + 7 + x + 9 + x + 11 )/(5)`
= `(5x + 35)/(5)`
= `(5 (x + 7))/5`
= x + 7.
APPEARS IN
संबंधित प्रश्न
The mean of 15 observations is 32. Find the resulting mean, if the observation is: Increased by 3
The mean of 15 observations is 32. Find the resulting mean, if each observation is: Multiplied by 2
The mean of 15 observations is 32. Find the resulting mean, if the observation is: Decreased by 20%
The mean of 6 numbers is 42. If one number is excluded, the mean of the remaining number is 45. Find the excluded number.
For the set of numbers given below, find mean: 3, 0, 5, 2, 6, 2
The marks obtained by 10 students are listed below:
2, 5, 3, 8, 0, 9, x, 6, 1, 8
If the mean marks is 5, find x.
If the mean of 7, 16, 9, 15, 16, a, 12, 8, b, 11 is 12, write a in terms of b.
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 divided by 0.25
