Machine Learning Zoomcamp 2024

Homework 2: Machine Learning for Regression Statistics

Distribution of scores and reported study time for this homework.

Submissions

469

Median total score

Average total score

Score distribution

All values are points.

Metric	Min	Q1	Median	Average	Q3	Max
Questions score	1	3.0	4.0	4.2	6.0	6
Learning in public score	-	0.0	0.0	0.6	0.0	7
Total score	1	3.0	5.0	4.9	6.0	14

Questions score

Min: 1
Median: 4.0
Max: 6
Q1: 3.0
Avg: 4.2
Q3: 6.0

Learning in public score

Min: -
Median: 0.0
Max: 7
Q1: 0.0
Avg: 0.6
Q3: 0.0

Total score

Min: 1
Median: 5.0
Max: 14
Q1: 3.0
Avg: 4.9
Q3: 6.0

Time distribution

All values are hours reported by students.

Metric	Min	Q1	Median	Average	Q3	Max
Lectures	0.0	3.0	5.0	6.9	8.0	60.0
Homework	0.0	2.0	3.0	4.7	5.0	87.0

Lectures

Min: 0.0
Median: 5.0
Max: 60.0
Q1: 3.0
Avg: 6.9
Q3: 8.0

Homework

Min: 0.0
Median: 3.0
Max: 87.0
Q1: 2.0
Avg: 4.7
Q3: 5.0

Question breakdown

Correctness and answer distribution per question.

1. Missing values

448 / 468 correct (95.7%)

1 'ram' 7 (1.5%)

2 'storage' 10 (2.1%)

3 'screen' 448 (95.7%)

4 'final_price' 3 (0.6%)

2. Median for RAM

463 / 468 correct (98.9%)

1 8 2 (0.4%)

2 16 463 (98.9%)

3 24 3 (0.6%)

4 32 0 (0.0%)

3. Filling NAs

237 / 468 correct (50.6%)

1 With 0 237 (50.6%)

2 With mean 64 (13.7%)

3 Both are equally good 164 (35.0%)

4. Regularization

169 / 468 correct (36.1%)

1 0 128 (27.4%)

2 0.01 69 (14.7%)

3 1 30 (6.4%)

4 10 169 (36.1%)

5 100 64 (13.7%)

5. RMSE spread

345 / 468 correct (73.7%)

1 19.176 47 (10.0%)

2 29.176 346 (73.9%)

3 39.176 50 (10.7%)

4 49.176 10 (2.1%)

6. RMSE on Test

318 / 468 correct (67.9%)

1 598.60 86 (18.4%)

2 608.60 319 (68.2%)

3 618.60 29 (6.2%)

4 628.60 17 (3.6%)

Calculated: 11 October 2024, 08:33