The mean of `n` observations is `xdot` If `k` is added to each observation, then the new mean is ` X ` (b) ` X +k` (c) ` X -k` (d) `k X `

The mean of n observations is x. If k is added to each observation,then the new mean is X (b) X+k(c)X-k(d)kX

The mean of n observations is X dot If each observation is multiplied by k , the mean of new observation is k X (b) ( X )/k (c) X +k (d) X -k

The mean of n observations is X dot If each observation is multiplied by k , the mean of new observation is k X (b) ( X )/k (c) X +k (d) X -k

The mean of 10 observations is 15. If one observation 15 is added, then the new mean is 16 (b) 11 10 (d) 15

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

Mean of n observations x_(1),x_(2),.......,x_(n) is bar(x) . If an observation x_(q) ' then the new mean is

Mean of n observations x_1,x_2 ,…., x_n is barx . If an observation x_q is replaced by x'_q , 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

The A.M. of n observation is X. If the sum of n-4 observation sis K, then the mean of remaining observations is

The mean of n observations is bar(x) . If the first observation is increased by 1, the second by 2 and so on, the new mean is . . . .