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Box Plot -

A Box Plot, or Box and Whisker Plot, is a graphical view of a data set that is divided into fourths or “quartiles.” It shows the center and spread of a data set but is most useful when comparing two or more “strata” or data sets such as the cycle time for two different departments.

For a better understanding of Box Plot (aka Box and Whisker Plot) and an overview of Lean Six Sigma, check out our Free Lean Six Sigma Yellow Belt Training, Green Belt Training or Lean Training.

Elisabeth Swan

Elisabeth is a Managing Partner at, the co-author of The Problem-Solver’s Toolkit and co-host of the Just-in-Time Cafe. For over 25 years, she's helped leading organizations like Amazon, Charles Schwab and Starwood Hotels & Resorts build problem-solving muscles with Lean Six Sigma to achieve their goals.