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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the output of the sigmoid function when z = 0?
💡 Hint: Substitute z = 0 in the sigmoid formula.
Question 2
Easy
If σ(z) = 0.8, what category does this fall into?
💡 Hint: Compare 0.8 with the threshold of 0.5.
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 range of the output values from the sigmoid function?
- -1 to 1
- 0 to 1
- 0 to infinity
💡 Hint: Consider how the function is defined mathematically.
Question 2
True or False: The sigmoid function can predict multiple class outcomes beyond binary classification.
- True
- False
💡 Hint: Focus on the definition of sigmoid in context.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a dataset with two features and z calculated as 2.0, predict the output using the sigmoid function and classify it.
💡 Hint: Use the sigmoid formula to find the probability!
Question 2
Discuss how changing the threshold from 0.5 to a higher value affects sensitivity and specificity in classification.
💡 Hint: Evaluate how class imbalance may play a role.
Challenge and get performance evaluation