13-09-2022
Mathematics

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I don't understand this question

I dont understand this question class=

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LammettHash LammettHash

13-09-2022

The probabilities of all possible outcomes must sum to 1. So the missing probability is

1 - 1/2 - 3/10 - 1/20 = (20 - 10 - 6 - 1)/20 = 3/20

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