Multiple Choice Questions on The variance of 20 observations is 5 If each observation is multiplied by 3 then what is the new var........... for NDA Exam Preparation

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Multiple Choice Questions

The variance of 20 observations is 5 If each observation is multiplied by 3 then what is the new var...........

Mathematics (NDA) Statistics
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    The variance of 20 observations is 5. If each observation is multiplied by 3, then what is the new variance of the resulting observations?

    5

    Incorrect Answer

    10

    Incorrect Answer

    15

    Incorrect Answer

    45

    Correct Answer
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    Explanation:

    New variance =5×(3)2=45

    By: Munesh Kumari
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