Which of the following is an example of a ratio measurement?
A) Fahrenheit scale for measuring temperature
B) Body mass index
C) Quality of life scale score
D) Levels of education
B
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Body mass index is an example of ratio measurement, as it has a meaningful zero and provides information about the absolute magnitude of an attribute (body mass). Ratio measurement is the highest level of measurement. The Fahrenheit scale for measuring temperature (interval measurement) has an arbitrary zero point. Quality of life scale is an example of interval measurement, and levels of education are an example of ordinal measurement.
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