Question

What do the terms first quartile, second quartile, third quartile, interquartile range, and range mean?

Accepted Answer

first quartile: the median of the lower half of a data set  
second quartile: the median of the entire data set   
third quartile: the median of the upper half of a data set   
interquartile range: the range of the middle $$50\%$$ of a data set  
range: the difference between the highest and lowest values of a data set

Flashcard 27 - Math Flashcard Set for the SAT Exam

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