Machine Learning Zoomcamp 2026

Homework 4: Evaluation Metrics for Classification Statistics

Distribution of scores and reported study time for this homework.

Submissions

553

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
0.5
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
4.0
Max
100.0
Q1
3.0
Avg
6.2
Q3
7.0

Homework

Min
0.0
Median
3.0
Max
62.0
Q1
2.0
Avg
4.1
Q3
4.1

Question breakdown

Correctness and answer distribution per question.

1. ROC AUC feature importance

523 / 553 correct (94.6%)

1 lead_score 523 (94.6%)
2 number_of_courses_viewed 19 (3.4%)
3 interaction_count 3 (0.5%)
4 annual_income 7 (1.3%)

2. Model AUC

509 / 553 correct (92.0%)

1 0.532 6 (1.1%)
2 0.632 12 (2.2%)
3 0.732 509 (92.0%)
4 0.832 24 (4.3%)

3. Precision and recall

510 / 553 correct (92.2%)

1 0.43 12 (2.2%)
2 0.63 510 (92.2%)
3 0.73 20 (3.6%)
4 0.83 8 (1.4%)

4. F1 score

500 / 553 correct (90.4%)

1 0.21 7 (1.3%)
2 0.41 500 (90.4%)
3 0.61 32 (5.8%)
4 0.81 13 (2.4%)

5. 5-Fold CV standard deviation

502 / 553 correct (90.8%)

1 0.001 2 (0.4%)
2 0.007 502 (90.8%)
3 0.013 37 (6.7%)
4 0.060 11 (2.0%)

6. Best C

472 / 553 correct (85.4%)

1 0.000001 23 (4.2%)
2 0.001 472 (85.4%)
3 1 56 (10.1%)

Calculated: 9 November 2026, 13:02