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13 October, 17:48

What is the Q1 and Q3?

4,6,8,9,13,21,31

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  1. 13 October, 17:55
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    Answers: Q1 = 6Q3 = 21

    The data is already sorted for us. If it wasn't, then you would have to write the values from smallest to largest.

    The median is the middle most value 9 (in slot 4)

    The median separates the data into two halves, which I'll call the lower and upper half

    lower half = {4,6,8}

    upper half = {13,21,31}

    The median of the lower half is 6, and this is the value of Q1.

    The median of the upper half is 21. This is the value of Q3
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