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Related to the Economics in Practice on p. 453: The Consumer Price Index in the United States was 215.3 in 2008 and 214.5 in 2009. If a retiree received a monthly pension check of $3,200.00 in 2008 and his pension is tied to the CPI, how much would his monthly pension check be in 2009?
Sample Averages
The mean value calculated from a sample set of data, representing the central tendency or typical value of that sample.
Mode
Mode refers to the most frequently occurring value in a set of data.
Regression Toward the Mean
A statistical phenomenon wherein extreme scores on one occasion tend to be closer to the average on subsequent testing.
Illusory Correlation
A cognitive bias where people falsely perceive an association between two unrelated events or variables.
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