Learning Objectives

The mode

3-1: Understand the purposes of measures of central tendency.

3-2: Calculate and interpret measures of central tendency (mode, median, mean) for a set of data.

3-3: Identify the mode from a frequency distribution table or figure.

The median

3-4: Understand why are there different formulas for calculating the median for an odd versus even number of scores for a variable.

The mean

3-5: Understand why the mean is the balancing point in a distribution of scores.

Measures of central tendency: drawing conclusions

3-6: Understand the differences between statistics and parameters.

3-7: Understand the strengths and weaknesses of the mode, median, and mean as measures of central tendency and when you might use one rather than the others.

3-8: Understand when you might a particular measure of central tendency to describe a set of data.