If the mean of `n `observations `1^2, 2^2,3^2........,2^n` is`,46n /11` then n is equal to

If the mean of n observations 1^2, 2^2, 3^2,….n^2 is (46n)/(11) then n equal to

If .^nC_0,^nC_1,^nC_2,.....^nC_n are frequencies of n+1 observations 1,2,2^2,.....2^n such that mean is 729/2^n then value of n is:

If the observation 1, 2, 3, ……….., n occur with frequency, n,(n-1), (n-2),…..,1 respectively such that the mean of observations is (13)/(3) , then n is equal to

If the observation 1, 2, 3, ……….., n occur with frequency, n,(n-1), (n-2),…..,1 respectively such that the mean of observations is (13)/(3) , then n is equal to

The mean of the n observation x_1, x_2,…, x_n be barx then the mean of n observations 2x_1+3, 2x_2+3,…,2x_n+3 is ______.

The mean and variance of n observations x_(1), x_(2), x_(3),……..,x_(n) are 5 and 0 respectively. If sum_(i=1)^(n) x_(i)^(2) = 400 , then the value of n is equal to