gracepeckpeck gracepeckpeck

15-05-2023
Mathematics

Answered

A spinner has three sections which are coloured pink, grey and black. Richard spun the spinner 100 times in total. The frequency of spins that landed on grey was 45. The ratio of the frequency of pink to the frequency of grey was 8 : 9. What is the estimated probability of the spinner landing on black? Give your answer as a decimal.

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