- represented/reported as percentages - categorical means there is more than two groups, and patient can only fall into one group (no rank/order) (i.e, gender, race)
- represented/reported as percentages - categorical means there is more than two groups, and patient can only fall into one group (no rank/order) (i.e, gender, race)
represent differing kinds rather than amounts (gender, marital status, or breed of dog, etc.)