The mean of n items is `bar(x)`. If the first item is increased by n, second by `n-1` and so on and last by 1, then the new mean is

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

If the first item is increased by 1, second by 2 and so on, then the new mean is

The mean of n observations is barX . If the first item is increased by 1, second by 2 and so on, then the new mean is___

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