Machine Learning Zoomcamp 2024

Homework 3: Machine Learning for Classification Statistics

Distribution of scores and reported study time for this homework.

Submissions

382

Median total score

6

Average total score

6

Score distribution

All values are points.

Questions score

Min
1
Median
5.0
Max
6
Q1
5.0
Avg
5.3
Q3
6.0

Learning in public score

Min
-
Median
0.0
Max
7
Q1
0.0
Avg
0.7
Q3
1.0

Total score

Min
1
Median
6.0
Max
14
Q1
5.0
Avg
6.1
Q3
6.0

Time distribution

All values are hours reported by students.

Lectures

Min
0.0
Median
5.0
Max
84.0
Q1
3.0
Avg
6.5
Q3
8.0

Homework

Min
0.3
Median
3.0
Max
24.0
Q1
2.0
Avg
3.8
Q3
5.0

Question breakdown

Correctness and answer distribution per question.

1. Mode for the column `education`

373 / 385 correct (96.9%)

1 `unknown` 2 (0.5%)
2 `primary` 5 (1.3%)
3 `secondary` 376 (97.7%)
4 `tertiary` 1 (0.3%)

2. Two features with the biggest correlation

354 / 385 correct (91.9%)

1 `age` and `balance` 12 (3.1%)
2 `day` and `campaign` 5 (1.3%)
3 `day` and `pdays` 9 (2.3%)
4 `pdays` and `previous` 357 (92.7%)

3. Variable with the biggest mutual information score

363 / 385 correct (94.3%)

1 `contact` 4 (1.0%)
2 `education` 7 (1.8%)
3 `housing` 6 (1.6%)
4 `poutcome` 365 (94.8%)

4. Accuracy on the validation dataset

364 / 385 correct (94.5%)

1 0.6 2 (0.5%)
2 0.7 6 (1.6%)
3 0.8 4 (1.0%)
4 0.9 367 (95.3%)

5. Feature with the smallest difference

382 / 385 correct (99.2%)

1 `age` 108 (28.1%)
2 `balance` 85 (22.1%)
3 `marital` 103 (26.8%)
4 `previous` 77 (20.0%)

6. Smallest `C` that leads to the best accuracy on the validation set

196 / 385 correct (50.9%)

1 0.01 51 (13.2%)
2 0.1 152 (39.5%)
3 1 101 (26.2%)
4 10 46 (11.9%)
5 100 23 (6.0%)

Calculated: 17 October 2024, 07:46