Median and Mean and Interquartile Range and MAD | Six Minutes: Grade 6 Math, Part 33

Six Minutes: Grade 6 Math, Part 33: Median and Mean and Interquartile Range and MAD: Two ways to name the middle of a data set; then Interquartile Range and MAD The mean balances every value by dividing the sum by the count, while the median is the middle value of the ordered data. One large value can pull the mean far away while the median barely moves. Then: This episode defines the interquartile range as Q3 minus Q1 and the mean absolute deviation as the average distance from the mean. It works both measures on original data sets and checks each answer a second way. Chapters 0:00 Introduction 0:22 Two centers 0:47 Finding the median 1:05 Worked example 2:33 Trap 2:55 Recap 3:09 Interquartile Range and MAD 3:23 Two ways to measure spread 3:52 Finding the quartiles 4:31 Computing the MAD 5:05 Worked example 6:27 The common mistake 6:41 Recap 6:59 Thanks for watching Practice problems 1. Find the median and the mean of 12, 4, 9, 15, 10. (Median 10; mean 50 ÷ 5 = 10.) 2. Find the median and the mean of 3, 5, 7, 45. (Median (5 + 7) ÷ 2 = 6; mean 60 ÷ 4 = 15.) 3. Data: 2, 4, 6, 8, 10, 12, 14. Find the IQR. (Median 8; Q1 = 4, Q3 = 12; IQR = 8.) 4. Data: 5, 7, 9. Find the MAD. (Mean 7; distances 2, 0, 2; MAD = 4/3, about 1.33.) Six Minutes @SixMinuteClass: One technique, about six minutes. The narrator's voice is synthetic (computer-generated). Independent educational video. © 2026 Six Minutes · @SixMinuteClass