3. Central Tendency

After this lesson, students should be able to

• explain the difference between the three measures of central tendency

• select the most appropriate measure of central tendency for variables

• calculate the mean

• explain and calculate percentiles

1. Healey, Ch3

2. Bennett, Ch4

Supplemental:

• Motley Fool's article, Here's How Much the Average 50-Something American Has Saved for Retirement, paying particular attention to the different uses of mean and median