If the variance of 5 values is 0 81 then what is its standard deviation ........

Quantitative Aptitude (MTS) Statistics

If the variance of 5 values is 0.81, then what is its standard deviation?

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SSC MTS 26th October 2021 Shift-1

0.09

0.9

2.7

0.27

- The variance is a measure of how much the values in a data set differ from the mean.

- The standard deviation is the square root of the variance.

- Given variance = 0.81, to find the standard deviation, you take the square root of 0.81.

- The square root of 0.81 is 0.9.

- Therefore, the correct option is Option 2: 0.9 .

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