What is the average of the squares of first 14 natural numbers?

Correct option is C

Given:
First 14 natural numbers.
Formula Used:
Average of squares of first n natural numbers = $$\frac{(n + 1)(2n + 1)}{6}$$​​
Solution:
Here, n = 14.
Substitute the value of n in the formula.
Average = $$\frac{(14 + 1)(2 × 14 + 1)}{6}$$​​
​$$= \frac{15 × (28 + 1)}{6}$$​​

​$$= \frac{15 × 29}{6}$$​​

= 72.5
Final Answer
So the correct answer is (c)