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9th Class Mathematics Statistics Question Bank Statistics

  • question_answer
    The data given below are the times m minutes. 10, 15, 13, 22 It takes four students to go to school from their homes. Which of the following statement (s) about the data is/are false? (i) The mean is 11.      (ii) The median is 15. (iii) The range is 14.

    A)  only (i) and (ii)

    B)  only (ii) and (iii)

    C)  only (i) and (iii)

    D)  All the statements are false

    Correct Answer: D

    Solution :

         Mean\[=\frac{60}{4}=15\] Median\[=\frac{15+13}{2}=14\] Range\[=22-10=12\]


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