JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2015

  • question_answer
    The standard deviation of 15 items is 6 and if each item is decreased by 1, then standard deviation will be

    A) 5                                             

    B) 7

    C)   6   

    D)   \[p=\rho hg\]

    Correct Answer: C

    Solution :

        We know that, standard deviation is independent of change of origin. Hence, if each item is decreased by 1, then standard deviation will be same i.e. 6.                                


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