A researcher measured 50 patients’ weights. There were 13 patients less than 50Kg, and 17 patients over 70Kg, with the rest weighing between 50 and 70Kg. Which type of variable is used by the researcher?
A、quantitative variable;
B、categorized variable;
C、ordinal variable;
D、binary variable;
E、 nominal variable
发布时间：2026-02-09 09:36:08
