The value of arithmetic mean of differences of a finite number of observations from their arithmetic mean is……….

Calculate the arithmetic mean of even numbers' and odd numbers from 1 to 100 ?

If the arithmetic mean of two positive number a and b (a gtb ) is twice their geometric mean then a : b is

The arithmetic mean of 7 consecutive integers starting with 'a' is m. Then, the arithmetic mean of 11 consecutive integers starting with 'a+2' is

Insert 6 arithmetic means between 3 and 24.

Let x,y,z be different integers less than or equal to 14. The arithmetic mean of x and y is 10 and the geometric mean of x and z is 2 sqrt(21) then harmonic mean of y and z is equal to

If H_(1),H_(2) are two harmonic means between two positive numbers a and b (aneb) , A and G are the arithmetic and geometric means between a and b, then (H_(2)+H_(1))/(H_(2)H_(1)) is

Suppose the mean of certain number of observation is 50 and the sum of all the observation is 450. Write down the number of observations.

10^(th) term of an arithmetic sequence is 82 , If its common difference is 8 , find the position of the term 250 in the sequence.

The algebraic form of an arithmetic sequence is 5n+5 Can the difference of any two terms of this sequence be 368? Justify.