OCR GCE A LEVEL FURTHER MATHEMATICS B PAPER 1 QUESTION PAPER 2023 (Y432/01: Statistics Minor)
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OCR GCE A LEVEL FURTHER MATHEMATICS B PAPER 1 QUESTION PAPER 2023 (Y432/01: Statistics Minor). DOWNLOAD OFFICIAL AND VERIFIED OCR A LEVEL FURTHER MATHEMATICS B PAPER 1 QUESTION PAPER 2023 ON www.leakedexams.com.


1 A fair spinner has ten sectors, labelled 1, 2, …, 10. In order to start a game, Kofi has to obtain an
8, 9 or 10 on the spinner.
(a) Find the probability that Kofi starts the game on the third spin. [2]
(b) Find the probability that Kofi takes at least 5 spins to start the game. [1]
(c) Determine the probability that the number of spins required to start the game is within 1
standard deviation of its mean. [5]