Question : What is the average of the first 10 prime numbers?
Option 1: 10.9
Option 2: 12.9
Option 3: 11.9
Option 4: 13.9
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Answer (1)
25th Jan, 2024
Correct Answer: 12.9
Solution :
The first 10 prime numbers are:
2, 3, 5, 7, 11, 13, 17,19, 23, 29
⇒ Average = $\frac{\text{Sum of observation}}{\text{Number of observation}}$ = $\frac{(2+3+5+7+11+13+17+19+23+29)}{10}$ = $\frac{129}{10}$ = 12.9
Hence, the correct answer is 12.9.
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