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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the intercept (β0) in a linear regression model represent?
💡 Hint: Think about what happens to the dependent variable when predictors do not contribute.
Question 2
Easy
What does a slope of β1 = 3 imply in a regression context?
💡 Hint: Consider the effect of increasing the predictor variable.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does β1 represent in a linear regression equation?
- Intercept
- Slope
- Error term
💡 Hint: Remember the linear regression equation structure.
Question 2
True or False: A higher R² score indicates a worse model fit.
- True
- False
💡 Hint: Think about what R² measures regarding model quality.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have a linear regression model with an intercept of 5 and a slope of 2. Predict y when x = 10, and interpret what this means in a real-world context.
💡 Hint: Apply the regression formula and think about its implications.
Question 2
In a model yielding an R² of 0.92, discuss what this indicates about the relationship between independent and dependent variables, including potential limitations of interpretation.
💡 Hint: Consider other factors that may not be included in the model.
Challenge and get performance evaluation