Lesson 4 Homework | Practice Descriptive Statistics Answers

Sorted already. n=9 Median (Q2) = 15 (5th value) Lower half (first 4): 5,7,8,12 → Q1 = (7+8)/2 = 7.5 Upper half (last 4): 18,21,22,25 → Q3 = (21+22)/2 = 21.5

Mean = (10+12+14+16+18)/5 = 70/5 = 14

IQR = Q3 – Q1 = 21.5 – 7.5 = 14

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