Topics / Probability / Frequency trees
OCR Foundation · Paper 1 · May 2025 · Q13 · calculator
Frequency Trees & Percentages
1 Try it first
From the paper · Q13 · 6 marks
Get a pencil and have a go on paper before you watch.
2 Watch it solved
Tried it? Press play. Plays from YouTube.3 Your turn
240 drinks: 3/8 tea, the rest coffee. 40 teas and 80 coffees have milk. Coffees with no milk? % with milk?
Show the answer
Tea 90, coffee 150. Coffees with no milk: 150 − 80 = 70. With milk: 120 of 240 = 50%.