The mean deviation from the mean of the AP a, a+d, a+2d,....... | Mathematics | SolveeIt | Solveeit

Today, August 24

Question

The mean deviation from the mean of the AP a, a+d, a+2d,..... a + 2nd is

A

n(n+1)d

B

$\frac{n(n+1)d}{2n+1}$

C

$\frac{n(n+1)d}{2n}$

D

$\frac{n(n-1)d}{2n+1}$

Answer

$\frac{n(n+1)d}{2n+1}$

Explanation

Solution

The correct answer is(B): $\frac{n(n+1)d}{2n+1}$