Brainlag PlusSorting into Venn diagrams, two-way tables and frequency trees, set notation, and probabilities from all three.
Fill the middle first
In a Venn diagram, each number is in exactly one region.
Start with the overlap (those in both), then subtract it from each circle's total, then work out the number outside both circles. Totals of 30 in A and 20 in B with 8 in both give 22 in A only and 12 in B only.
The rest of this lesson and its 10 practice questions are in Plus.
Screen 1 of 5, free to read.
- 10 exam-style questions, marked as you go, each with a worked solution
- Anything you get wrong is saved to your flashcards