LLM Zoomcamp 2026

Homework 2: Vector Search Statistics

Distribution of scores and reported study time for this homework.

Submissions

505

Median total score

6

Average total score

6

Score distribution

All values are points.

Questions score

Min
-
Median
6.0
Max
6
Q1
6.0
Avg
5.6
Q3
6.0

Learning in public score

Min
-
Median
0.0
Max
7
Q1
0.0
Avg
0.6
Q3
1.0

Total score

Min
-
Median
6.0
Max
14
Q1
6.0
Avg
6.3
Q3
7.0

Time distribution

All values are hours reported by students.

Lectures

Min
0.0
Median
5.0
Max
50.0
Q1
3.0
Avg
6.0
Q3
6.0

Homework

Min
0.0
Median
2.0
Max
48.0
Q1
2.0
Avg
3.4
Q3
4.0

Question breakdown

Correctness and answer distribution per question.

1. Embedding a query

492 / 505 correct (97.4%)

1 -0.31 5 (1.0%)
2 -0.02 492 (97.4%)
3 0.12 5 (1.0%)
4 0.44 2 (0.4%)

2. Cosine similarity

484 / 505 correct (95.8%)

1 0.07 7 (1.4%)
2 0.37 484 (95.8%)
3 0.68 10 (2.0%)
4 0.92 4 (0.8%)

3. Chunking and search by hand

484 / 505 correct (95.8%)

1 02-vector-search/lessons/03-embeddings-dataset.md 6 (1.2%)
2 02-vector-search/lessons/06-rag-vector.md 8 (1.6%)
3 02-vector-search/lessons/07-sqlitesearch-vector.md 484 (95.8%)
4 02-vector-search/lessons/09-onnx-embedder.md 5 (1.0%)

4. Vector search with minsearch

477 / 505 correct (94.5%)

1 02-vector-search/lessons/04-vector-search.md 14 (2.8%)
2 04-evaluation/lessons/05-search-metrics.md 477 (94.5%)
3 04-evaluation/lessons/13-llm-as-judge.md 6 (1.2%)
4 05-monitoring/lessons/04-metrics.md 6 (1.2%)

5. Text search vs vector search

452 / 505 correct (89.5%)

1 02-vector-search/lessons/01-intro.md 11 (2.2%)
2 02-vector-search/lessons/02-embeddings.md 25 (5.0%)
3 02-vector-search/lessons/08-pgvector.md 452 (89.5%)
4 03-orchestration/lessons/05-rag.md 12 (2.4%)

6. Hybrid search

447 / 505 correct (88.5%)

1 01-agentic-rag/lessons/01-intro.md 18 (3.6%)
2 01-agentic-rag/lessons/13-function-calling.md 447 (88.5%)
3 01-agentic-rag/lessons/14-agentic-loop.md 20 (4.0%)
4 01-agentic-rag/lessons/16-other-frameworks.md 11 (2.2%)

Calculated: 3 July 2026, 20:38