Data Classification Examples

Classify the following three attributes as binary, discrete or continuous. Further classify the attributes as qualitative (nominal or ordinal) or quantitative (interval or ratio)???

(a) Time in terms of AM or PM. Binary, qualitative, ordinal
(b) Brightness as measured by a light meter. Continuous, quantitative, ratio
(c) Brightness as measured by peoples judgments. Discrete, qualitative, ordinal
(d) Angles as measured in degrees between 0 and 360. Continuous, quantitative, ratio
(e) Bronze, Silver, and Gold medals as awarded at the Olympics. Discrete, qualitative, or- dinal
(f) Height above sea level. Continuous, quantitative, interval/ratio (depends on whether sea level is regarded as an arbitrary origin)
(g) Number of patients in a hospital. Discrete, quantitative, ratio
(h) ISBN numbers for books. (Look up the format on the Web.) Discrete, qualitative, nominal (ISBN numbers do have order information, though)
(i) Ability to pass light in terms of the following values: opaque, translucent, transparent. Discrete, qualitative, ordinal
(j) Military rank. Discrete, qualitative, ordinal
(k) Distance from the center of campus. Continuous, quantitative, interval/ ratio (depends)
(l) Density of a substance in grams per cubic centimeter. Continuous, quantitative, ratio
(m) Coat check number. (When you attend an event, you can often give your coat to someone who, in turn, gives you a number that you can use to claim your coat when you leave.) Discrete, qualitative, nominal