'And' and 'or' events

Use Venn diagrams and two-way tables to find the probability of ‘and’, inclusive ‘or’ and exclusive ‘or’ events.

⏱ 20 min❓ 10 questions

What you'll be able to do

✔I can find P(A and B) and P(A or B) from a Venn diagram or two-way table
✔I can tell the difference between inclusive ‘or’ and exclusive ‘or’
✔I can use P(A or B) = P(A) + P(B) − P(A and B) to find a missing probability

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

10 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: AC9M9P02