Question : What is the average of the first 13 odd numbers?
Option 1: 14
Option 2: 13.5
Option 3: 12
Option 4: 13
Answer (1)
24th Jan, 2024
Correct Answer: 13
Solution :
The sum of the first 'n' odd natural numbers = n$^2$
Average = $\frac{\text{Sum of all observation}}{\text{Total number of observation}}$
The sum of the first '13' odd natural numbers = (13)$^2$
= 169
⇒ Average = $\frac{169}{13}$ = 13
$\therefore$ The average of the first '13' odd natural is 13.
Hence, the correct answer is 13.
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