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Q.

Find the mean of the first five natural numbers.


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a

3

b

5

c

6

d

2 

answer is A.

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Detailed Solution

We have to find the mean of the first five natural numbers.
The first five natural numbers are 1,2,3,4,5.
We know that,
Mean=Sum of observationsNumber of observations
⇒Mean=1+2+3+4+55
⇒Mean=155
⇒Mean=3
Thus, the mean of the first five natural numbers is 3.
Hence, the correct option is 1.
 
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