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HW1_Sol

# HW1_Sol - STATS 202 Homework 1 Hao Chen July 3 2011 In...

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STATS 202 Homework 1 Hao Chen July 3, 2011 In total: 40 points. Problem 2 (26 points, 2 points each) Classify the following attributes as binary, discrete, or continuous. Also classify them as qualitative (nominal or ordinal) or quantitative (interval or ratio). Some cases may have more than one interpretation, so briefly indicate your reasoning if you think there may be some ambiguity. Example: Age in years. Answer: Discrete, quantitative, ratio (a) Time in terms of AM or PM. Binary, Qualitative, Nominal/Ordinal. (b) Brightness as measured by a light meter. Continuous/Discrete (if arguing the light meter only show limited number of digits after the decimal point), Quantitative, Ratio. (c) Brightness as measured by peoples judgments. Discrete, Qualitative, Ordinal. (d) Angles as measured in degrees between 0 and 360. Discrete/Continuous, Quantitative, Ratio. (e) Bronze, Silver, and Gold medals as awarded at the Olympics. Discrete, Qualitative, Ordinal.

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