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Let x(1), x(2),….., x(n) be n observatio...

Let `x_(1), x_(2),….., x_(n)` be n observations and x be their arithmetic mean. The formula for the standard deviation is given by :

A

`sum (x_(i) - bar(x))^(2)`

B

`(sum (x_(i) - bar(x))^(2))/(n)`

C

`sqrt((sum (x_(i) - bar(x))^(2))/(n))`

D

`sqrt((sum x_(i)^(2))/(n) + x^(-2))`

Text Solution

Verified by Experts

The correct Answer is:
C
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