Dr. Fowler CCM1A EXAM REVIEW 02. Categorical Variable A variable is categorical if each observation belongs to categories. Examples: 1. Gender (Male.
The mean is typically what is meant by the word “average.” The mean is perhaps the most common measure of central tendency. The sample mean is written.
{ Box-and-Whisker Plots. Median, Quartiles, Inter-Quartile Range and Box Plots. Measures of Spread The range is not a good measure of spread because one.
