Chapter 04.1 Exercise Question 17

4.1.17

Do men with children tend to live longer than men without children? To investigate, a group of students at CalPoly randomly sampled men from the obituaries page on the San Luis Obispo Tribune's webpage between June and November 2012. For each man selected, they noted the age at which the person died and whether the person had any children listed under "survived by."

Identify the explanatory variable in this study. Also classify this variable as categorical or quantitative.

a. Whether the man had children; categorical

b. Whether the man had children; quantitative

c. Age when the man died; quantitative

d. Age when the man died; categorical

Identify the response variable in this study. Also classify this variable as categorical or quantitative.

a. Age when the man died; quantitative

b. Whether the man had children; quantitative

c. Whether the man had children; categorical

d. Age when the man died; categorical

Below is a set of dot plots displaying the data from the students' study. Based on the dotplots, is there any indication of an association between the explanatory variable and the response variable?

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