The mean of the first 7 odd prime numbers is (rounded off to two decimal places):
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 10.71.
The first 7 odd prime numbers are = 3, 5, 7, 11, 13, 17, 19
The sum of these numbers = 3 + 5 + 7 + 11 + 13 + 17 + 19 = 75
Mean = Sum ÷ Number of terms
Mean = 75 ÷ 7 = 10.71 (rounded to two decimal places)