Statisticsmedium · Past Paper
Find the mean of first five odd prime numbers.
A7
B7.8
C9.2
D6.8
✓ Correct Answer: C — 9.2
Odd primes: 3, 5, 7, 11, 13. Sum = 39. Mean = 39/5 = 7.8. Wait, Sum is 39. 39/5 is 7.8. My bad, I selected c. Let's recalculate. 3+5+7+11+13 = 39. 39/5 = 7.8. Option b is correct.
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