Question : What will be the average of all the prime numbers between 9 and 22?
Option 1: 14
Option 2: 15
Option 3: 10
Option 4: 12
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Answer (1)
27th Jan, 2024
Correct Answer: 15
Solution :
According to the question
Prime numbers between 9 and 22: are 11, 13, 17,19
Average of $n$ observations is given by $\frac{\text{Sum of all observations}}{n}$
⇒ Average = $\frac{(11 + 13 + 17 + 19)}{4}$ = 15
Hence, the correct answer is 15.
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