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Arithmetic Mean

What is the m...

Question

What is the mean of first five natural numbers.

A

15

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B

5

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C

3

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D

1

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Solution

The correct option is C 3
The first five natural numbers are 1, 2, 3, 4, 5.
Sum of the observations in the dataset
= 1 + 2 + 3 + 4 + 5 = 15

$M e a n = \frac{S u m o f O b s e r v a t i o n s}{N u m b e r o f O b s e r v a t i o n}$

$= \frac{15}{5} = 3$

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