The United Nations and the World Health Organization expressed alarm regarding the extent to which AIDS has reduced life expectancy in Southern Africa. In Swaziland, children born between 2000 and 2005 could expect to live an average of only 34.4 years, compared to a worldwide life expectancy that is about twice that long.23
a. Consider age at death for people in a developed country like the United States. Would the distribution's shape be leftskewed, symmetric, or right-skewed?
b. Consider age at death for people in Swaziland. Would the distribution's shape be more symmetric or less symmetric than that for the United States?