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Questions and Answers
What is the main objective of simple linear regression?
What is the main objective of simple linear regression?
- To determine the causation between two variables
- To predict the value of a dependent variable based on the value of an independent variable (correct)
- To calculate the mean and standard deviation of a dataset
- To analyze the relationship between two or more independent variables
What does the slope of the regression line represent in simple linear regression?
What does the slope of the regression line represent in simple linear regression?
- The change in the dependent variable for a one-unit change in the independent variable (correct)
- The average of the dependent variable
- The correlation coefficient between the variables
- The standard error of the regression
In simple linear regression, what does the coefficient of determination (R-squared) measure?
In simple linear regression, what does the coefficient of determination (R-squared) measure?
- The accuracy of the regression model in predicting the dependent variable
- The proportion of the variance in the dependent variable that is predictable from the independent variable (correct)
- The degree of collinearity between the independent and dependent variables
- The strength and direction of the relationship between the variables
