The average of the square of first five even natural numbers is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 44
The first five even natural numbers are 2, 4, 6, 8, 10.
22 = 4
42 = 16
62 = 36
82 = 64
102 = 100
Number of observations = 5
Sum of all the observations = 4 + 16 + 36 + 64 + 100 = 220
Average = Sum of all the observations/Number of observations = 220/5 = 44