- A9.5
- B16
- C19
- D39
Step-by-Step Solution
(4th), (12th). IQR . (39 is the range; 9.5 is the quartile deviation.)
Answer: C) 19
Fifteen readings in ascending order are 11, 14, 17, 19, 22, 25, 26, 28, 31, 33, 35, 38, 41, 44 and 50. Taking Q1 and Q3 as the 4th and 12th readings, what is the interquartile range?
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