Statistics released by a reputable traffic safety organization show that on an average weekend night, 1 out of every 10 drivers

Question

Statistics released by a reputable traffic safety organization 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 34?
(b) more than 52?
(c) at least 43 but less than 55?

Kunduz · Accepted Answer

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