Statistics released by the National Highway Traffic Safety Administration and the National Safety Council show that on an average weekend night, 1 out of every 10 drivers on the road is drunk. If 400 drivers are randomly checked next Saturday night, what is the probability that the number of drunk drivers will be (a) less than 32? (b) more than 49? (c) at least 35 but less than 47?
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6.33 Statistics released by the National Highway
Traffic Safety Administration and the National Safety
Council show that on an average weekend night, 1 out
of every 10 drivers on the road is drunk. If 400 drivers
are randomly checked next Saturday night, what is the
probability that the number of drunk drivers will be
(a) less than 32?
(b) more than 49?
(c) at least 35 but less than 47?
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