# Question: Among 21 to 25 year olds 29 say they have driven while

Among 21- to 25-year-olds, 29% say they have driven while under the inﬂuence of alcohol. Suppose that three 21- to 25-year-olds are selected at random.

(a) What is the probability that all three have driven while under the inﬂuence of alcohol?

(b) What is the probability that at least one has not driven while under the inﬂuence of alcohol?

(c) What is the probability that none of the three has driven while under the inﬂuence of alcohol?

(d) What is the probability that at least one has driven while under the inﬂuence of alcohol?

(a) What is the probability that all three have driven while under the inﬂuence of alcohol?

(b) What is the probability that at least one has not driven while under the inﬂuence of alcohol?

(c) What is the probability that none of the three has driven while under the inﬂuence of alcohol?

(d) What is the probability that at least one has driven while under the inﬂuence of alcohol?

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