What percentage of the data values represented on a box plot falls between the lower quartile and the upper quartile?

25%

33 1/3%

50%

75%

Use box and whisker plots when you have multiple data sets from independent sources that are related to each other in some way. Examples include test scores between schools or classrooms, data from before and after a process change, similar features on one part such as cam shaft lobes, or data from duplicate machines manufacturing the same products. 50%