Box Plot 1st And 3rd Quartile. The median third quartile and maximum. The upper quartile Q3 is equal to the median of the upper half.
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This means that about 25 of the numbers in the data set lie below Q1 and about 75 lie above Q1. The second quartile Q 2 is easy to find. 1 3 3 4 5 6 6 7 8 8.
Cut the list into quarters.
We can represent the list of nine numbers from Example 11 in such a Box Plot. Quartiles mark each 25 of a set of data. The second quartile Q 2 is the 50th percentile. Including the minimum score first lower quartile median.
