MCQ
The mean of first five prime numbers is:
- ✓$5.6$
- B$5.5$
- C$5.4$
- D$5.2$
✓
Answer
Correct option: A.
$5.6$
The first five prime numbers are: $2, 3, 5, 7, 11$
$\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}$
$=\frac{2+3+5+7+11}{5}$
$=\frac{28}{5}$
$=5.6$
Thus, the mean of first five prime number is $5.6$
Hence, the correct option is $(a).$
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