Mean of `n` terms is `vecx.` If these `n` items are successively increased by `2,2^2,2^3,...2^n` then the new mean is

The mean of n items is overline(X) . If the first item is increased by 1, second by 2 and so on, then the new mean is

The mean of n items is overline(X) . If the first item is increased by 1, second by 2 and so on, then the 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 of n observations is X . If the first item is increased by 1, second by 2 and so on, then the new mean is (a) X +n (b) X +n/2 (c) X +(n+1)/2 (d) None of these