1.

The mean of n observations is X. If each observation is multiplied by k, the mean of new observations is(a) kX¯(b) X¯k(c) X¯+k(d) X¯-k

Answer» The mean of n observations is X. If each observation is multiplied by k, the mean of new observations is



(a) kX¯



(b) X¯k



(c) X¯+k



(d) X¯-k


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