Using the parental HIV data set create a few visualizations to explore the relationship between the variables of interest listed below. In a few sentences describe the information about the given relationship you learn from each graph, and what specific features of the graph led you to that conclusion.

a) The relationship between the age when a child starts smoking and when they start drinking.

b) Ethnicity, a choice of one neighborhood characteristic, and financial situation of the household.

c) Attendance of religious services and level of religiousness/spiritualism.