11th Class Mathematics Sample Paper Maths Olympiad Model Paper-7

  • question_answer
    The mean square deviations about \[-\,1\] and 1 of a set of observations are 7 and 3 respectively. Find the standard deviation of this set of observations.

    A)  \[\sqrt{2}\]                   

    B)  \[\sqrt{5}\]

    C)  \[\sqrt{3}\]    

    D)  \[2\sqrt{3}\]

    E)  None of these

    Correct Answer: C

    Solution :

     Not Available               


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