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.
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9
The median is 9.
13
Mean: 9 Median: 8.5 Mode: 14, 6, 8, 10, 9, 5, 7, 13
Mean: 7.875 Median: 7.5 Mode: 14, 6, 8, 1, 9, 5, 7, 13