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The box plot shows the average class sizes in 15 schools. Which statement about the class sizes must be true? The range of the class sizes is 8. The largest class size is 31. About one-half of the classes range in size from 23 to 31. The median class size is 23. Ms. Henslee made the following box plot of the quiz grades in her Math class. 70 What is the median of the data? 77 86 96 Ms. Henslee made the following box plot of the quiz grades in her Math class. 96 What is the range of the data? 58 38 16 Ms. Henslee made the following box plot of the quiz grades in her Math class. 70 What is the lower quartile, Q1? 58 38 22 Ms. Henslee made the following box plot of the quiz grades in her Math class. 58 What is the upper quartile, Q3? 70 77 86 Ms. Henslee made the following box plot of the quiz grades in her Math class. 86 What is the Interquartile Range (IQR)? 77 70 16 A Luke’s math scores for this grading period are listed: 84, 86, 83, 78, 92, 87, 92, 90, 88, 86
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