JEE Main & Advanced Sample Paper JEE Main Sample Paper-45

  • question_answer
    If the standard deviation of 0,1,2,..., 9 is k, then the standard deviation of 10,11,12,...,19 is

    A)  \[k\]                

    B)  \[k+10\]

    C)  \[k+\sqrt{10}\]          

    D)  \[10k\]

    Correct Answer: A

    Solution :

     Here, we see that 10 is added in each observation of the first data. Since, we know that SD is not depend on change of origin. Hence, SD of second data is k.

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