A box plot, also known as a box-and-whisker plot, is a Six Sigma tool used to visualize the distribution of a dataset. It displays the dataset’s minimum, first quartile, median, third quartile, and maximum values, highlighting the spread and central tendency of the data. The box represents the interquartile range (IQR), while the whiskers extend to the minimum and maximum values within 1.5 times the IQR. Outliers are plotted as individual points. Box plots help identify variations, central tendencies, and potential outliers, making them useful for comparing distributions and identifying opportunities for process improvement.
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