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Mathematics, 15.12.2021 04:30 drhtgsehg6334

Twenty-two percent of former smokers say they tried to quit four or more times before they were habit-free. You randomly select 10 former smokers.
Find the probability that the first person who tried to quit four or more times
is (a) the third person selected, (b) the fourth or fifth person selected, and
(c) not one of the first seven people selected?

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