Add them up

Scenario

You are a data scientist in the Environment team. sum() adds every number in a list.

Question

Write your code in the editor, look at the result, then try changing one small thing.

Your task

Write your code in the editor
Press Check my answer
Look at the result on the right

sum()

Read the simple theory: Statistics

Intermediate · Data Filtering & Record Counting — question 1 of 30

Finish all 30 to earn a certificate

1. Choose your dataset

Pick an industry and a size. Your code and results change to match.

IndustrySize

📓 DataPro notebookds-baby-032.ipynbFileEditViewRunKernel: Python 3

[md]

Add them up

Write your code in the editor, look at the result, then try changing one small thing.

In [1]:

Your code cell is below. Press Check my answer to run the cell — the result appears as Out [1].

python editorwater_tests

Snippets

💡 Explain my whole code, line by line (hover any word in the editor for a tip)

🌈 In short — no coding words

📂 Opens the "water_tests" table→✅ Shows you the answer

Altogether: this script runs top to bottom, one line at a time, building up the answer step by step.

Start typing to see suggestions. Press Enter to use one. Red marks show the line to fix. Drag a bottom corner horizontally and vertically to resize.

Type your code here ↓Tap or click inside the box to start

✍️ Tap here to type

Dataset & schema

water_tests

IndustryDataset size

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.

attempts: 0

▶ Output terminal

$ Press “Check my answer” — results appear here.

Your next steps

Each item turns green when your answer includes it.

1 left

Uses sum()