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The first quartile of a data set is 72, and the third quartile is 92. Which of these values in the data set is an outlier? A.61 B.101 C.121 D.41
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The first quartile of a data set is 72, and the third quartile is 92. Which of these values in the data set is an outlier? A.61 B.101 C.121 D.41

User Bartimar
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IQR = Q3 - Q1 = 92 - 72 = 20
20 * 1.5 = 30

72 - 30 = 42....outlier is anything below 42
92 + 30 = 122...outlier is anything above 122

so the outlier is 41
User Dmitri M
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