3.8 - Correlation and Regression
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Practice Questions
Test your understanding with targeted questions
What does it mean when two variables are positively correlated?
💡 Hint: Think of study time and grades.
What type of correlation exists if more rain leads to less sunshine?
💡 Hint: Recall how one variable influences the other in opposite directions.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of correlation exists when both variables increase together?
💡 Hint: Remember the example of studying and grades.
True or false: Regression can be used to predict one variable based on another.
💡 Hint: Think about how businesses forecast sales.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Imagine a company notices that increased social media advertising correlates with higher sales. How could they use regression to improve sales forecasts?
💡 Hint: Consider inputs and outputs for your prediction.
If two variables show a strong positive correlation, how could this mislead a researcher about causation?
💡 Hint: Reflex on other scenarios where third variables might play a role.
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