Solve step by step The antidote called hydroxocobalamin, which is used to treat fire smoke poisoning, has a two-thirds probability of effectiveness. This antidote was applied to 9 intoxicated people who were rescued from a burning building. a) What is the probability that the antidote will be effective on at least 5 people? b) Calculate the probability that less than a third of the people will survive the fire due to the application of the antidote. c) What is the probability that cash beats exactly 7 people?

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