The least value, first quartile, median, third quartile, and greatest value of the data are 4, 5, 8, 9.75 and 15 respectively.
The first step is to arrange the number in ascending order: 4, 5, 5, 6, 8, 8, 9, 10, 12, 15
The median is the number in the center of the data set. The number is 8.
First quartile = 1/4 x (n + 1) = 2.75 number : 5
Third quartile = 3/4 x (n + 1) = 8.75 = 9.75
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