Box Plots

Learn how to create box plots and where to use them.


Box plots display the distribution of a continuous variable or numerical data. They are also called box and whiskers plots. We use them to compare different groups or datasets. They provide a visual summary of the median, quartiles, range, and any outliers in the data. They are commonly used to detect outliers and recognize the distribution of data. The lines that reach from the minimum value to the maximum value are called whiskers. In a box plot:

  • The median value is represented by the line in the middle.
  • The first quartile (25th^{th} quantile) and the third quartile (75th^{th} quantile) of the data are represented as the borders of the box in the chart.
  • The outliers are shown as points.

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