The Parental HIV data set described in Appendix A includes the following variables: job status of mother (JOBMO, 1=employed, 2=unemployed, and 3=retired/disabled) and mother’s education (EDUMO, 1=did...

The Parental HIV data set described in Appendix A includes the following variables: job status of mother (JOBMO, 1=employed, 2=unemployed, and 3=retired/disabled) and mother’s education (EDUMO, 1=did not complete high school, 2=high school diploma/GED, and 3=more than high school). Classify these two variables using Stevens’s measurement system.