Categorical. This is because the observations we acquired from the data are relative number in the various categories. The categories consist of traditional (with children and with only the husband in the labor force), dual-income with children, dual-income with no children, other(such as older married couples whose children no longer reside in the household). a. Quantitative. This is because the observations from the data take numerical values and they show different magnitudes of the variables. b. Discrete. This is because the values acquired from number of children are all finite or separate numbers. c.See table d.For the number of children listed, the greatest number of categories was 2 children, with 25.94%. Therefore, the number of two children is the modal category because it has the greatest frequency among the others.