[" The A.M of the observations "],[[" 1.3.5,"3.5.7,5.7.9,,......,(2n-1)(2n+1)(2n+3)" is "]]

The A.M of 1,2,3,4,…..100 is

The A.M of first n natural numbers is

A.M of a+d,a,a-d is

A.M of 20 and 40 is…..

The M.D. of the variates 100,101,.....,109 from A.M. is nearly

Find A.M.,G.M.,H.M. of the numbers 4 and 16

State the condition when A.M. = G.M. = H.M.

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