Machine Learning Zoomcamp 2026

Homework 3: Machine Learning for Classification Statistics

Distribution of scores and reported study time for this homework.

Submissions

579

Median total score

6

Average total score

6

Score distribution

All values are points.

Questions score

Min
-
Median
6.0
Max
6
Q1
5.0
Avg
5.5
Q3
6.0

Learning in public score

Min
-
Median
0.0
Max
7
Q1
0.0
Avg
0.4
Q3
0.0

Total score

Min
-
Median
6.0
Max
14
Q1
6.0
Avg
6.0
Q3
6.0

Time distribution

All values are hours reported by students.

Lectures

Min
0.0
Median
5.0
Max
48.0
Q1
3.0
Avg
6.6
Q3
8.0

Homework

Min
0.0
Median
3.0
Max
57.0
Q1
2.0
Avg
3.7
Q3
4.0

Question breakdown

Correctness and answer distribution per question.

1. Mode for industry

556 / 579 correct (96.0%)

1 NA 5 (0.9%)
2 technology 556 (96.0%)
3 healthcare 1 (0.2%)
4 retail 16 (2.8%)

2. Biggest correlation

549 / 579 correct (94.8%)

1 interaction_count and lead_score 549 (94.8%)
2 number_of_courses_viewed and lead_score 5 (0.9%)
3 number_of_courses_viewed and interaction_count 11 (1.9%)
4 annual_income and interaction_count 12 (2.1%)

3. Biggest MI

553 / 579 correct (95.5%)

1 industry 5 (0.9%)
2 location 5 (0.9%)
3 lead_source 553 (95.5%)
4 employment_status 12 (2.1%)

4. Accuracy

546 / 579 correct (94.3%)

1 0.55 2 (0.3%)
2 0.65 546 (94.3%)
3 0.75 20 (3.5%)
4 0.85 9 (1.6%)

5. Feature selection

456 / 579 correct (78.8%)

1 lead_source 80 (13.8%)
2 number_of_courses_viewed 456 (78.8%)
3 interaction_count 39 (6.7%)

6. Parameter tuning

529 / 579 correct (91.4%)

1 0.000001 25 (4.3%)
2 0.00001 5 (0.9%)
3 0.0001 14 (2.4%)
4 0.001 529 (91.4%)

Calculated: 20 October 2026, 11:20