Question
In a state, the probability that a person speaks French is 0.55. It is known that...
In a state, the probability that a person speaks French is 0.55. It is known that 15% from persons who speak French and 25% from persons who don’t speak French are teachers. A person is selected at random.
(1) Determine the probability that the selected person is a teacher.
(2) Suppose that the selected person is a teacher. What is the probability that she speaks French?
(3) Determine the probability that the selected person is a teacher or speaks French.
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