If the mean of 25 obseviations is 27 and each observiations is decreased by 7 what will be the new mean ?

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

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-

The mean of 18 observation is 7 and if each observation 5 is added,then the new mean will be

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

If each observation of the data is decreased by 8 then their mean

The mean of 15 observations is 32. Find the resulting mean, if each observation is decreased by 7

[" The mean of four different observations is 17.5 When a new observation whose value 20 is added,what will be the new mean?

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

The mean of ten items is 17 and if each item is increased by 5, then the new mean will be

The mean weight of 8 numbers is 15. If each number is multiplied by 2, what will be the new mean?