L3 · Required

Experiments and inference

Use experiments and inference to make decisions inspectable.

What you should be able to do

Independently: Distinguish observational comparisons from randomised experiments.

Suggested prerequisites

A short guide

Use experiments and inference to make decisions inspectable. Distinguish observational comparisons from randomised experiments. Read the indicated source section, identify its key concepts and conditions, and work through the example. Record inputs, sources, units and assumptions. Keep your method separate from the result, mark unanswered questions, and review the output against the checklist.

An example

Higher spending by purchasers does not establish campaign causation.

Your task

Distinguish observational comparisons from randomised experiments.

Start with this source

Read the indicated section relevant to experiments and inference and complete the applied task.

This source is awaiting renewed review. Try the task above and adjacent skills; reviewed sources will appear here.

Your learning checklist

Required items: 0 / 10 completed or already known

Device storage

Next: Read a role through its responsibilities

Checklist statuses are self-reported; exercise scores are recorded separately. You can reset any item.

Self-check

Try a practice set

Calculations and choices receive immediate checks. Review open responses yourself against the rubric. All examples are educational.

1. 5 of 20 users convert. Conversion rate (%)?
2. How do you check user count after joining multiple orders?
3. After the experiments and inference task, state one assumption, one supporting fact and one condition that would change your conclusion.