Tree diagrams for two steps

Draw tree diagrams for two-step chance experiments, with and without replacement, and multiply along branches to find probabilities.

⏱ 20 min❓ 9 questions

What you'll be able to do

✔I can draw a tree diagram to list all outcomes of a two-step experiment
✔I can multiply along branches and add between outcomes to find probabilities
✔I can adjust the second-stage probabilities when items are not replaced

How this works

1Read the short explanations first — they teach you what you need before each question.
2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.

What's inside

9 questions and 1 quick teaching card, including:

🔢Number answer — Work out the answer and type the number.
✏️Fill in the blank — Type the missing word to complete the sentence.

👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.

Curriculum: AC9M8P02