Lesson - 4 Homework Practice Descriptive Statistics Answers

IQR = 14 Problem Type 3: Mean Absolute Deviation (MAD) Data Set: 10, 12, 14, 16, 18

Sum = 12+15+14+12+18+20+14 = 105 Count = 7 Mean = 105 ÷ 7 = 15 Lesson 4 Homework Practice Descriptive Statistics Answers

Most frequent = 12 and 14 (both appear twice) → Bimodal IQR = 14 Problem Type 3: Mean Absolute

IQR = Q3 – Q1 = 21.5 – 7.5 = 14

Max – Min = 20 – 12 = 8

Mean=15, Median=14, Modes=12 & 14, Range=8 Problem Type 2: Interquartile Range (IQR) & Box Plot Data Set: 5, 7, 8, 12, 15, 18, 21, 22, 25 Modes=12 & 14