Boxplots are efficient tools to depict a data set's minimum, 25th percentile, median, 75th percentile, and maximum values. The red dots on either end designate the min and max values, minimum on the left, and maximum on the right. The first verticle line on the left is the 25th percentile, while the first verticle line on the right is the 75th percentile. The verticle line in between the 25th and 75th percentiles is obviously the median. Boxplots are very quick and easy to use, and are effective rough visual aids.
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