What is the average of the cube of the first 4 natural numbers?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 25.
First 4 natural numbers = 1, 2, 3, 4
Cube of first four natural numbers = 1, 8, 27, 64
We know that,
Average = Sum of observations/Number of observations
Average = (1 + 8 + 27 + 64)/4 = 100/4 = 25