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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the intercept in a linear regression model represent?
💡 Hint: Think about where the line crosses the y-axis.
Question 2
Easy
In the equation y = β0 + β1x + ϵ, what does β1 represent?
💡 Hint: Consider how y changes with changes in x.
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 is the purpose of Simple Linear Regression?
- To classify data
- To predict continuous outcomes
- To visualize data
💡 Hint: Think about how this method is used in data science.
Question 2
True or False: The slope tells you how much the dependent variable changes as the independent variable increases.
- True
- False
💡 Hint: Consider what happens to one variable as you change another.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are given data on the temperature (X) and ice cream sales (Y). Using a slope of 5, predict the sales when the temperature is 80 degrees Fahrenheit if the intercept is 10.
💡 Hint: Use the equation to find the value when plugging in the known values.
Question 2
Discuss the implications if our linear regression model didn't meet the assumptions of linearity. What might be the impact on predictions?
💡 Hint: Consider how outputs might deviate in non-linear trends.
Challenge and get performance evaluation