8 - Summary
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Practice Questions
Test your understanding with targeted questions
What type of outcome does logistic regression deal with?
💡 Hint: Think about how answers can be only two alternatives.
Define the sigmoid function.
💡 Hint: Can you remember how it looks mathematically?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does the sigmoid function output?
💡 Hint: Remember its purpose in logistic regression.
True or False: Logistic regression is used for multi-class classification.
💡 Hint: Think about the definition of logistics and its category handling.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Consider a dataset with 1000 observations where 800 are positive and 200 are negative. If a logistic regression model predicts 750 negatives and 250 positives, calculate accuracy.
💡 Hint: Use the definition of accuracy based on true positives and true negatives.
Given a logistic regression model output of 0.65 for a sample, if the threshold is set at 0.7, what will the classification be?
💡 Hint: Think about how classifications depend on the threshold.
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