Intermediate plus 1: Bar chart with matplotlib
Scenario
You are a data analyst in the Environment team, working with water_tests data. plt.bar draws one bar per group, so you can compare sizes by eye.
Question
Write your code in the editor, press Check my answer, then try changing one small thing.
Your task
- Write each line of your code
- Press Check my answer
- Change one value and check again
Intermediate · Record Counting & Average Calculations — question 6 of 30
1. Choose your dataset
Pick an industry and a size. Your code and results change to match.
Intermediate plus 1: Bar chart with matplotlib
Write your code in the editor, press Check my answer, then try changing one small thing.
Your code cell is below. Press Check my answer to run the cell — the result appears as Out [1].
💡 Explain my whole code, line by line (hover any word in the editor for a tip)
🌈 In short — no coding words
Altogether: this script runs top to bottom, one line at a time, building up the answer step by step.
Dataset & schema
water_tests
The tiny starter data. Bigger data scrolls.
Fields
| test_id | river | ph |
|---|---|---|
| W1 | Vaal | 7 |
| W2 | Orange | 6 |
| W3 | Vaal | 8 |
| W4 | Tugela | 5 |
Environment data only.
$ Press “Check my answer” — results appear here.Your next steps
Each item turns green when your answer includes it.
- Uses plt.bar
- Adds a title