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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for linear regression?
💡 Hint: Remember what each letter stands for.
Question 2
Easy
In the equation y = a + bx, what does 'y' represent?
💡 Hint: Think about what you are trying to predict.
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 the slope 'b' indicate in a linear regression model?
- Strength of the correlation
- Direction of the line
- Both A and B
💡 Hint: Consider what the slope tells you about the line's steepness.
Question 2
True or False: Linear regression can only be used for two variables.
- True
- False
💡 Hint: Think about how regression models can expand.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A dataset contains the following points: (1, 2), (2, 3), (3, 5), (4, 7). Calculate the slope and intercept of the best-fit line.
💡 Hint: Remember to compute means first for the dataset!
Question 2
In a study of temperature and ice cream sales, how could you set up the linear regression model? What would your independent and dependent variables be?
💡 Hint: Think about what affects what in this scenario.
Challenge and get performance evaluation