Chapter 4
Calculating Descriptive Statistics: Measures of Central Tendency (Mean, Median, and Mode)
In This Chapter
◆ Understanding central tendency
◆ Calculating a mean, weighted mean, median, and mode of a sample and population
◆ Calculating the mean of a frequency distribution
◆ Using Excel to calculate central tendency
The emphasis in Chapter 3 was to demonstrate ways to display our data graphically so that our brain cells could quickly absorb the big picture. With that task behind us, we can now proceed to the next step—summarizing our data numerically. This chapter allows us to throw around some really cool words like “median” and “mode” and, when we’re through, you’ll actually know what they mean!
As mentioned in Chapter 1, descriptive statistics ...

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