Question

The arithmetic mean of first 11 natural numbers is a)5

Answer 1

Answer:

The first 11 natural numbers are 1,2,3,4,5,6,7,8,9,10,11.

$mean = \frac{sum \: of \: observations}{number \: of \: observations}$

Here number of observations = 11

$mean = \frac{1 + 2 + 3 + 4 + 5 + 6 + 7+ 8 + 9 + 10 + 11}{11} \\ mean = \frac{66}{11} \\ mean = 6$

The correct answer is 6.

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