7.5.2 - Key Metrics
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Practice Questions
Test your understanding with targeted questions
Define Accuracy.
💡 Hint: Think about all the predictions made by the model.
What does Precision measure?
💡 Hint: It focuses on the accuracy of positive predictions.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does Accuracy measure?
💡 Hint: Think about how many choices were entirely correct.
Precision focuses on which aspect?
💡 Hint: Remember, it defines the quality of positive identifications.
3 more questions available
Challenge Problems
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Suppose you have a dataset with a class imbalance where 90% are negatives and only 10% are positives. If your model predicts all of them as negative, what would be the accuracy, precision, recall, and F1 Score?
💡 Hint: Calculate each metric based on the confusion matrix components.
Analyze a classification model that generates the following confusion matrix: TP=25, TN=15, FP=5, FN=5. What are the accuracy, precision, recall, and F1 score?
💡 Hint: Follow the definitions of each metric to guide your computations.
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