Exam 2: Displaying and Describing Categorical Data

A survey of salesmen was conducted to examine the possibility of a relationship between men's height and annual income.The company interested in the results of the survey believes that taller men are more successful at getting sales,resulting in a higher annual income.The table shows the percentages of income levels for each height category.A graphical display of the conditional distributions of income levels by height is given. Do these data support the company's belief: taller men are more successful salesmen? Explain.

Most women who have had a mastectomy can have breast reconstruction surgery.The reconstruction surgery can be performed at the same time as the mastectomy,an immediate reconstruction,or after the patient has healed from the mastectomy,second surgery reconstruction.Some women opt not to have reconstruction surgery.The table shows the percentages of women's choices regarding reconstruction for three age categories.A graphical display of the conditional distributions of reconstruction choice by age is given. Does there appear to be an association between reconstruction choice and age? Explain.

Students in a Political Science course were asked to describe their politics as "Liberal","Moderate",or "Conservative." Here are the results: Which graphical display shows the conditional distribution of politics among the males? I II III

A newspaper surveyed its subscribers as to which section of the paper they read first.The results are listed below. What percent of subscribers read a section of the paper not listed above first?

The Centers for Disease Control in the U.S.A.lists causes of death for individual states in 2002.The mortality data for one state is given. Which of the following displays is/are appropriate for these data? (More than one display may be appropriate. ) I II III