Tabulate Data (Expressions & Variables)

Load the Stata system dataset nlsw88.dta:

* load national longitudinal survey of young women
    sysuse              nlsw88, clear

1. Use tab to produce a frequency table for the variable race.

1. What are the number of observations in each race category?
2. Which race category is the mode (most common)?
3. What is the percentage of women in each category?

2. Use tab again, this time on the variable union, but include missing values in the table using the missing option:

1. How many women are in a union, how many are not, and how many are missing?
2. What percent of the sample has missing values for union?