10th Class Mathematics Statistics Question Bank Statistics

  • question_answer
    If the variance of the numbers 2, 4, 5, 6, 8, 17, is 23.33, then the variance of 4, 8, 10,12, 16, 34 will be

    A)  23.33              

    B)  46.66          

    C)  93.32        

    D)  None of these

    Correct Answer: C

    Solution :

    (c): When each item is doubled, variance gets multiplied by \[{{2}^{2}}=4\]                      


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