Exam-Style Question on Frequency Tree
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 298. This question is similar to one that appeared on a GCSE Foundation paper. The use of a calculator is allowed.
The 37th Wolverhampton Sea Scouts make a game for a fund raising event.
Players can win money by picking a golden ticket from a pot.
A player chooses a pot by picking a green ball or an orange ball out of a bag.
The game is played 500 times altogether and the frequency tree shows some of the outcomes.
(a) Complete the frequency tree.
(b) A player has one go at the game. Use the frequency tree to estimate the probability that the player wins some money.
The Scouts make a profit of £350 from this game.
(c) Work out how much it costs players to have one go at this game.
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If you need more practice try the self-checking interactive exercises called Frequency Trees.
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