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Mathematics 21 Online
OpenStudy (clamin):

PLEASE HELP! MEDAL! The first quartile of a data set is 52, and the third quartile is 72. Which of these values in the data set is an outlier? a. 101 b. 41 c. 21 d. 81

OpenStudy (johnweldon1993):

You have both quartiles...so you can find the interquartile range Q3 - Q1 With that IQR, an outlier lies below Q1 - 1.5IQR or above Q3 + 1.5IQR

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