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Lesson Description - Central Tendency:

This lesson covers the idea of central tendency. Students learn that the range of a given data set is the difference between the largest number and the smallest number in the data set. For example, in the data set {6, 6, 7, 8, 11, 13, 15}, the range is 15 – 6, which equals 9. The median is the middle number in the data set when the numbers are written from least to greatest. So in the data set above, the median is 8. If there is no middle number in the data set, the median is the average of the two middle numbers. The mode is the number in a data set that appears most often. So in the data set above, the mode is 6.

Related Lessons:

Central Tendency, Range Median Mode, mean median mode, mode in math, median mode