There are 7 observations in the data and their mean is 11. If each observation is multiplied by 2, then find the new mean.

There are 7 observations in the data and their mean is 11. If each observation is multiplied by 2, then the mean of new observations is (a) 11 (b) 13 (c) 22 (d) 5.5

There are 7 observations in the data and their mean is 11. If each observation is multiplied by 2, then the mean of new observations is 11 (b) 13 22 (d) 5.5

The variance of 10 observations is 16 and their mean is 12. If each observation is multiplied by 4, what is the new mean-

The variance of 10 observations is 16 and their mean is 12. If each observation is multiplied by 4, what is new standard deviation-

The mean of 15 observations is 32. Find the resulting mean, if each observation is multiplied by 2

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 of 15 observation is 23. If each obsevation is multiplied 2, then new mean is .

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

The mean and standard deviation of observations are 8 and 14 respectively. If each observation be multiplied by 3, the find the new and mean and new standard deviation of the resulting observation.

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