Chapter 2

Name some ways to graph quantitative variables and some ways to graph qualitative variables.

Pretend you are constructing a histogram for describing the distribution of salaries for individuals who are 40 years or older, but are not yet retired. a. What is on the Y-axis? Explain. b. What is on the X-axis? Explain. c. What would be the probable shape of the salary distribution? Explain why.

Explain the differences between bar charts and histograms. When would each be used?

Draw a histogram of a distribution that is a. Negatively skewed b. Symmetrical c. Positively skewed