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  3. 9th Class
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9th Class Mathematics Statistics Question Bank Statistics and Probability

  • question_answer
    If 8 be the mean of the observations \[\mathbf{x-13, x + 5, x + 9, x + 14, x + 15}\]then find the mean of the last four observations.

    A) 12                                                                    

    B) 12.75     

    C) 11.75                                                               

    D) 13

    E) None of these

    Correct Answer: B

    Solution :

    Not Available 


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