9th Class Mathematics Statistics Question Bank Statistics

  • question_answer
    Find the median of the first ten prime numbers.

    A)  24                              

    B)  14                  

    C)  12                  

    D)    22

    Correct Answer: C

    Solution :

    First tem prime numbers in ascending order are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29 Here n=10, which is even \[\text{Median}=\frac{{{\left( \frac{n}{2} \right)}^{th}}\text{item}\,+{{\left( \frac{n}{2}+1 \right)}^{th}}\text{item}}{2}\] \[=\frac{{{5}^{\text{th}\,}}\text{item+}{{\text{6}}^{\text{th}\,}}\text{item}}{2}\] \[=\frac{11+13}{2}=\frac{24}{2}=12\]


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