For a given data, the standard deviation is 20.If 3 is added to each observation , what is the new variance of the resulting observations?

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Solution

The correct option is A
20

If a constant is added to each observation, then the standard deviation of the resulting observations does not change.

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For a given data, the standard deviation is 20.If 3 is added to each observation , what is the new variance of the resulting observations?

The correct option is A 20 If a constant is added to each observation, then the standard deviation of the resulting observations does not change.

The correct option is A
20

If a constant is added to each observation, then the standard deviation of the resulting observations does not change.