12th Class Mathematics Sample Paper Maths Olympiad Model Paper-9

  • question_answer
    The variance of first 40 even natural numbers is

    A)  \[\frac{533}{4}\]                      

    B)  \[533\]

    C)  \[833\]                         

    D)  \[\frac{833}{4}\]

    E)  None of these

    Correct Answer: B


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