Vitamin D insufficiency is associated with many diseases including multiple sclerosis, breast and other cancers, bone diseases, tuberculosis. A variable which represents the vitamin D level (ng/ml) of a hospital patient is
A) a categorical variable.
B) a quantitative variable.
C) a nominal variable.
D) an ordinal variable.
E) an identifier variable.

Question

Quizplus · Accepted Answer

The variable representing the vitamin D level of a hospital patient is a quantitative variable since it is measured on a continuous scale (ng/ml).

Vitamin D Insufficiency Is Associated with Many Diseases Including Multiple