Homework 3: Machine Learning for Classification

Deadline: 12 October 2026 (Mon), 23:00

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Questions

Answer the questions below to complete your homework.

1. Mode for industry (1 point)

technology

healthcare

retail

2. Biggest correlation (1 point)

interaction_count and lead_score

number_of_courses_viewed and lead_score

number_of_courses_viewed and interaction_count

annual_income and interaction_count

3. Biggest MI (1 point)

industry

location

lead_source

employment_status

4. Accuracy (1 point)

0.55

0.65

0.75

0.85

5. Feature selection (1 point)

lead_source

number_of_courses_viewed

interaction_count

6. Parameter tuning (1 point)

0.000001

0.00001

0.0001

0.001