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In 2009 there were 33 722 traf c fatalities in the United

In 2009, there were 33,722 trafﬁc fatalities in the United States. Of these, 9817 were alcohol related.

(a) What is the probability that a randomly selected trafﬁc fatality in 2009 was alcohol related?

(b) What is the probability that a randomly selected trafﬁc fatality in 2009 was not alcohol related?

(c) What is the probability that two randomly selected trafﬁc fatalities in 2009 were both alcohol related?

(d) What is the probability that neither of two randomly selected trafﬁc fatalities in 2009 were alcohol related?

(e) What is the probability that of two randomly selected trafﬁc fatalities in 2009 at least one was alcohol related?

(a) What is the probability that a randomly selected trafﬁc fatality in 2009 was alcohol related?

(b) What is the probability that a randomly selected trafﬁc fatality in 2009 was not alcohol related?

(c) What is the probability that two randomly selected trafﬁc fatalities in 2009 were both alcohol related?

(d) What is the probability that neither of two randomly selected trafﬁc fatalities in 2009 were alcohol related?

(e) What is the probability that of two randomly selected trafﬁc fatalities in 2009 at least one was alcohol related?

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