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10th Class Mathematics Statistics Question Bank Statistics and Probability

  • question_answer
    When 10 is subtracted from all the observations, the mean is reduced to 60% of its value. If 5 is added to all the observations, then the mean will be

    A)  25            

    B)                         30  

    C)  60                         

    D)         65

    Correct Answer: B

    Solution :

    Not available


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