Risk, Toxicology, and Human Health Chapter 19 Data Analysis: Interpreting Graphs – Aids and Life Expectancy The graph below shows the effects of AIDS on life expectancy at birth in Botswana from 1950 through 2000 and projects the effects to 2050. Answer the questions below. Source: Data from United Nations and U.S. Census Bureau Using the data above, answer the following questions: 1. a) By what percentage did life expectancy in Botswana increase between 1950 and 1995? b) By what percentage is life expectancy in Botswana projected to decrease between 1995 and 2015? 2. a) By what percentage is life expectancy in Botswana projected to increase between 2015 and 2050? b) By what percentage is life expectancy in Botswana projected to decrease between 1995 and 2050? Copyright © 2011 Nelson Education Ltd. 1