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Figure 2-1
-Refer to Figure 2-1. Which arrow shows the flow of spending by households?
Sample Correlation
A measure that indicates the degree to which two variables change together, based on data drawn from a sample of the population.
Test Statistic
A value calculated from sample data during a statistical hypothesis test to determine the p-value or to compare against a critical value.
Prediction Interval
An estimated range of values within which a future observation is expected to fall, with a certain probability.
Independent Variable
A variable in an experiment or model that is manipulated or changed to assess its effects on a dependent variable.
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