A) 3
B) 3.6
C) 7
D) 5.6
Correct Answer: D
Solution :
The first five prime numbers are 2, 3, 5, 7 and 11. And their mean is \[\overline{x}=\frac{2+3+5+7+11}{5}=\frac{28}{5}=5.6\]
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