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Find outlier (if any) for the following data set: 15, 12, 7, 18, 16, 20, 31,...

Find outlier (if any) for the following data set: 15, 12, 7, 18, 16, 20, 31, 22, 34

A) outlier=7, 34 B) outlier=34 C) outlier= none D) outlier=31, 34 E) outlier=7

the answer is B. idk how

Math   Statistics-And-Probability   
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