Recall that the median is the middle number of an ordered set of data.
The range is the interval of the values covered. To find it, take the difference between the highest and the lowest values.
Recall that mode is the number that occurs the most often within a set of data.
Along with the median, the quartiles divide a set of data into four groups of the same size.
Recall that the mean refers to the average of a set of data.
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