Mathematics, 03.11.2020 08:40 luc58
Assume there is a 20% chance of an adult American suffering from a psychiatric disorder. Give answers accurate to four decimal places.
(a) Find the probability that none of them them suffer from a psychiatric disorder.
b) Find the probability that exactly three of them suffer from a psychiatric disorder.
c) Find the probability that at least one of them suffers from a psychiatric disorder.
d) Find and interpret the mean of the random variable X where X is the number who suffer from a psychiatric disorder among for adult Americans.
Answers: 1
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Assume there is a 20% chance of an adult American suffering from a psychiatric disorder. Give answer...
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