Among 36 to 41 year olds, 33% say they have written an editorial letter while under influence of alcohol. Suppose six 36 to 41 year olds are selected at random.
what is the probability that at least one has not written an editorial while under the influence of alcohol?
what is the probability that one of the six have written an editorial letter while under the influence of alcohol?
what is the probability that at least one has written an editorial letter while under the influence of alcohol?
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