2. Box-and-Whisker Plots
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To find how can we use a box-and-whisker plot to describe a data set, let's describe each of its elements. A box-and-whisker plot shows the variability of a data set along a number line. It uses a rectangular box and two segments. These segments are called whiskers.
The set of numbers used to draw the box plot is called the five-number summary of the data set. Each of the five numbers is labeled accordingly.
Therefore, we can use a box-and-whisker plot to show the least value, first quartile, median, second quartile, and greatest value of a data set. Additionally, by only looking at the box-and-whisker plot, we can state some facts about the data set.