Exam-Style Question on Probability
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 648. This question is similar to one that appeared on a GCSE Higher paper in 2020. The use of a calculator is allowed.
Carol has two fair 5-sided spinners. One spinner is pink and the other is green.
The spinners could land on any of the single digit odd numbers with equal probability.
(a) Draw a tree diagram to show the probabilities of either, or both spinners landing on a square number.
(b) Work out the probability that the pink spinner lands on a square number and the green spinner does not.
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