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  • Perplex
    IB Math AIHL
    /
    Descriptive Statistics
    /

    Problem Bank

    [Maximum mark: 5]

    A student named Alex recorded the number of minutes spent reading each evening for 30 consecutive days.


    A box-and-whisker diagram summarizing the 30 reading times is shown below.


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    1. Write down Alex's median daily reading time.

      [1]

      To earn a crown, get your answer ready before you reveal the options!

    2. State the interquartile range of Alex's daily reading time.

      [1]

    Alex claims, "I managed to read every single day this month."

    1. State if Alex's claim is correct. Give a reason for your answer.

      [3]

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