Explain the logic and components of regression analysis. What is the purpose of the correlation coefficient? A scatterplot?
What will be an ideal response?
Regression analysis--a statistical technique for characterizing the pattern of a relationship between two quantitative variables in terms of a linear equation and for summarizing the strength of this relationship in terms of its deviation from the linear pattern; the regression line summarizes the relationship between the independent and the dependent variables (positive, negative, and none; correlation coefficient--a summary statistic that varies from 0 to 1 or ?1, with 0 indicating that the relationship is completely described by the line representing the regression of the dependent variable on the independent variable; a scatterplot shows the location of each case in the data.
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______ is the quantification of the value of all the goods and services produced in an economy, plus the value of the goods and services imported, less the goods and services exported.
a. Gross state product (GSP) b. Gross national product (GNP) c. Gross domestic product (GDP) d. Gross value added (GVA)
The primary sources of international law are ______.
a. general principles and court decisions b. treaties and general principles c. treaties and custom d. custom and court decisions