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 Related Terms
 Quartiles:  When data in a set are arranged in order, quartiles are the numbers that split the data into quarters (or fourths).
Data: The facts or numbers that describe something.
Statistics: The branch of mathematics that deals with the collection, organization, and interpretation of data.
Box and Whisker Plot: A diagram that summarizes data using the median, the upper and lower quartiles, and the extreme values (outliers).