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The standard deviation of first 10 natur...

The standard deviation of first `10` natural numbers is

A

`8.25`

B

`6.5`

C

`3.87`

D

`2.87`

Text Solution

Verified by Experts

The correct Answer is:
D
We know that the standard deviation of the first n natural number is `sqrt[(n^2-1)/12]`
Then, the standard deviation of the first `10` natural numbers is
`=sqrt(10^2-1)/12`
`=sqrt (99/12)`
...
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