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4 January, 20:56

What is the first quartile, Q1, of the data set?

{23, 28, 28, 36, 56, 60, 61, 65, 70}

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  1. 4 January, 22:40
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    It is 28 because you have to take the median out then go to the first set of data and find the median of that.
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