Question 38 • HCISD-Mathematical Models with Applications B-CR SUMMER
Arrange the values from least to greatest: 23, 26, 26, 27, 28, 31, 32. The median is 27, so the lower half is 23, 26, 26 and the upper half is 28, 31, 32. Their medians are Q1 = 26 and Q3 = 31, so the interquartile range is 31 − 26 = 5. The correct choice is A, 5.
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