Answer the following statement(s) true (T) or false (F)

1. A perfect fit is indicated when the coefficient of determination is zero.
2. The standard error of the estimate is a measure of the spread of the y values around the regression line as calculated for the mean value of the independent variable, only, and assuming a large sample.
3. A regression line assumes a linear relationship that is constant over the range of observations.
4. The dependent variable is also called the error term.
5. Pearson’s correlation coefficient, r, measures the association


1.false
2.true
3.true
4.false
5.true

Political Science

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Which statement best summarizes the pertinent question of civil rights?

A) Laws cannot make distinctions among people. B) Laws cannot discriminate. C) Laws must treat everyone equally. D) Laws can treat different people differently, but such differences must be reasonable. E) Laws can discriminate as long as they do not make distinctions.

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The focus of this chapter is the problem of rising ______ in the United States.

a. unemployment b. interest rates c. student debt d. fiscal instability

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Which of the following international agencies often influences countries to impose sanctions?

a. International Labor Organization b. International Atomic Energy Agency c. Intergovernmental Panel on Climate Change d. International Fund for Agricultural Development

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The expansion of state and local powers by recent presidents is commonly called ___________

a. nation-centered federalism b. instrumental federalism c. cooperative federalism d. devolution

Political Science