It is 9, the middle number when they are listed in order.
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It is 9.
Mean = 11 Median = 11 Mode = 4 Range = 18
Mean: 11 Median: 11 Mode: 4 Range: 18
median of {5, 15, 9, 13} is 11 To find the median of a dataset sort the data into order and the median is the middle one; if there are an even number of items in the dataset, then the median is the mean average of the middle two. {5, 15, 9, 13} → {5, 9, 13, 15} There are 4 data items, → median is mean of {9, 13} = (9 + 13) / 2 = 11.
The answer is 8.5