Question

multiple choice question
which level of data gives the most information about the observation?
ratio
ordinal
nominal
interval

Explanation:

Data levels are ranked by information richness: Nominal (categorical, no order) < Ordinal (ordered categories) < Interval (ordered, equal intervals, no true zero) < Ratio (has all interval properties plus a true zero, allowing multiplication/division of values, providing the most detailed quantitative and comparative information).

Answer:

A. Ratio