Q1. Monthly Gross Domestic Product (GDP) figures from 1990-2000 are an example of: A) cross-sectional data. B) systematic data. C) time-series data.
Q2. The sample of per square foot sales for 100 U.S. retailers in December 2004 is an example of: A) unbiased data. B) cross-sectional data. C) time-series data.
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