Scenario: We’ll continue to examine the World Development Indicators data in BirthRate 2005. We’ll broaden our analysis to work with other variables in that file:

 Provider: Source of maternity leave benefits (public, private or a combination of both).

 Fertil: Average number of births per woman during child-bearing years.
 MortUnder5: Deaths, children under 5 years per 1,000 live births.
 MortInfant: Deaths, infants per 1,000 live births.

a. Create a mosaic plot and contingency table for the Provider and Region columns. Report on what you find.

b. Use appropriate methods to investigate how fertility rates vary across regions of the world. Report on what you find.

c. Create a scatterplot for MortUnder5 and MortInfant. Report the equation of the fitted line and the rsquare value, and explain what you have found.

d. Is there any noteworthy pattern in the covariation of Provider and MatLeave90+? Explain what techniques you used, and what you found.