Let `X_(n)` denote the mean of first n natural numbers, then the mean of `X_(1), X_(2), ………….., X_(100)` is

Mean of first n natural numbers is

If the mean of first n natural numbers is 11 then n =

The mean of first n natural numbers is . . . . .

If the mean of first n natural numbers is (5n)/2 then the value of n will be

If M is the mean of n observations x_(1)-k, x_(2)-k, x_(3)-k,…., x_(n)-k , where k is any real number, then what is the mean of x_(1), x_(2), x_(3) …., x_(n) ?

If S_(n) denotes the sum of first 'n' natural numbers then S_(1)+S_(2)x+S_(3)x^(2)+........+S_(n)*x then n is

The mean of X_(1),x_(2) ,………, x_(n) is 10 ,then the mean of 5x_(1),5x_(21) ….. 5_(x)n is:

If S_n denotes the sum of first n natural number then S_1 + S_2x + S_3 x^2 +……+S_n x^(n-1) + ……oo terms =

If S_n denotes the sum of first n natural number then S_1 + S_2x + S_3 x^2 +……+S_n x^(n-1) + ……oo terms =

If S_(n) denotes the sum of first 'n' natural numbers then s_(1)+S_(2)x+S_(3)x^(2)+.........+S_(n) x^(n-1)+......oo=(1-x)^(-n) then n is