WGU C955 - Module 6: Questions & Correct Answers | Grade A+

regression equation Ans- An equation used to model the relationship between the response and explanatory variables in a regression. extrapolate Ans- Using information from a data set to make predictions about data outside of the original set. significant difference Ans- A measurable difference between two groups or samples that reflects a real difference, rather than the difference being by chance. sampling frame Ans- The list of all people or things that may be included in the statistical study. degree Ans- The largest exponent in a mathematical expression or equation. positive correlation Ans- A linear relationship between two quantitative variables in which the dependent variable increases as the independent variable increases. population Ans- All subjects in the study which have the characteristics being evaluated. scatterplot Ans- A graph that uses dots on a coordinate plane to show the relationship between variables. least squares Ans- A technique for finding the regression line. regression analysis Ans- A statistical analysis tool that quantifies the relationship between a response variable and one or more explanatory variables. voluntary sampl