Gasoline prices in the United States decreased significantly between 2014 and 2016. A decrease in the price of gasoline, holding other things constant, will cause which of the following to occur?
A) increase the demand for gasoline.
B) decrease the demand for gasoline.
C) increase the quantity of gasoline demanded.
D) decrease the quantity of gasoline demanded.
Answer: C
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The expected value of a project is always the
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A) should be excluded if one explanatory variable has negative values. B) determines the height of the regression line. C) should be excluded because the population regression function does not go through the origin. D) is statistically significant if it is larger than 1.96.
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A) is not related to the amount that they have contributed. B) is a yearly proportion of the amount contributed. C) is the same for everyone whether they contributed to the system or not. D) depends entirely on the amount received from private pensions.