Find the weighted arithmetic mean of the first ‘n’ natural numbers, the weights

MCQ Practice

Find the weighted arithmetic mean of the first 'n' natural numbers, the weights being the corresponding numbers.

Subject: MathematicsTopic: Average

$$frac{{left{ {nleft( {n + 1} right)left( {2n + 1} right)} right}}}{6}$$

$$frac{{left{ {nleft( {n + 1} right)} right}}}{2}$$

$$frac{{left{ {left( {2n + 1} right)} right}}}{3}$$

$$n$$

Correct Answer: C