A-LevelMathematicsProbability and statisticsOct/Nov 2022Paper 6 Q28 Marks
A spinner has five sectors, each printed with a different colour. Susma and Sanjay both wish to test whether the spinner is biased so that it lands on red on fewer spins than it would if it were fair. Susma spins the spinner 40 times. She finds that it lands on red exactly 4 times.
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