10th Class Mathematics Statistics Question Bank Statistics

  • question_answer
    What is the arithmetic mean of \[a+2\], a and \[a-2\]?

    A) \[\text{a}+\text{2}\]                     

    B)        a   

    C) \[\text{a}-\text{2}\]                      

    D)        3a

    Correct Answer: B

    Solution :

    Mean \[=\frac{a+2+a+a-2}{3}=\frac{3a}{3}=a\]


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