A survey was conducted among multiple homeowners or renters who were randomly chosen from several neighborhoods within a particular county of Washington. The data were collected at the household level, and the following variable was recorded for each household: NumRes: The number of people residing in the household or apartment, taking only positive integers {1, 2, 3, ...}. What kinds of variable is this? Select all that apply. nominal : numerical : continuous discrete categorical ordinal l l indicator l l