Home
Class 11
MATHS
The mean and the standard deviation (s.d...

The mean and the standard deviation (s.d.) of five observations are 9 and 0, respectively. If one of the observations is changed such that the mean of the new set of five observations becomes 10, then their s.d. is
0
1
2
4

Promotional Banner

Similar Questions

Explore conceptually related problems

The mean and standard deviation of 6 observations are 8 and 4 respectively . If each observation is multiplied by 2, find the new mean and new standard deviation of the resulting observation.

The mean and standard deviation of six observations are 8 and 4, respectively.If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations.

Given that the arithmetic mean and standard deviation of a sample of 15 observations are 24 and 0 respectively. Then which one of the following is the arithmetic mean of the smallest five observation in the data?

The mean and variance of 7 observations are 8 and 16, respectively.If five of the observations are 2,4,10,12,14. Find the remaining two observations.

The standard deviation of 25 observations is 4 and their mean is 25. If each observation is increased by 10, what is the new mean-