Quiz 3
July 13, 2021
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Question 1 of 10
1. Question
1. High classification accuracy always indicated a good classifier.
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Question 2 of 10
2. Question
2. For a classifier classifying between 5 classes, there always exists a classifier with accuracy greater than 0.18.
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Question 3 of 10
3. Question
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Question 4 of 10
4. Question
4. The most widely used metrics and tools to analyse performance of the classification model are:
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Question 5 of 10
5. Question
5. Which of the following is a widely used and effective machine learning algorithm based on the idea of bagging?
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Question 6 of 10
6. Question
6. Suppose you have trained a logistic regression classifier and it outputs a new example x with a probability prediction [0.2 , 0.8]. This means …
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Question 7 of 10
7. Question
7. What is a loss function?
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Question 8 of 10
8. Question
8. Suppose your model is overfitting. Which of the following is NOT a valid way to try and reduce the overfitting?
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Question 9 of 10
9. Question
9. Sensitivity (Recall) in the confusion matrix is calculated as …
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Question 10 of 10
10. Question
10.Accuracy is the best metric for classification problems.
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