Home
Class 12
MATHS
The arithmetic mean of 10 observations i...

The arithmetic mean of 10 observations is 12.45. If each reading is increased by 5 then the resulting mean is increased by

A

5

B

29

C

0.5

D

50

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

The mean of 20 observations is 12 . If each observation is increased by 5 , then find the new mean .

The mean of 7 observations is 7. If each observation is increased by 2, then the new mean is

The mean of 5 observations is 10. If each observation of the data is increased by 5, the new mean is :

The arithmetic mean of a set of observations is bar(X) . If each observation is divided by alpha and then is increased by 10, then the mean of the new series is

Mean of 20 observations is 17. If observation 40 is replaced by 12, then the new mean is

The variance of 15 observations is 4. If each observations increased by 9 find the variance of the resulting observations.

If each observation of the data is increased by 5, then their mean

Find the arithmetic mean of 4 and 12.

If each observation is increased or decreased by a; then the mean is also increased by a.