SOLUTION: In a given city, the probability that a given person is taller than 180 cm is 0.26
 a) If 18 people are chosen, what is the probability that at least 3 are taller than 180

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 a) If 18 people are chosen, what is the probability that at least 3 are taller than 180       Log On


   

Question 1042409: In a given city, the probability that a given person is taller than 180 cm is 0.26

a) If 18 people are chosen, what is the probability that at least 3 are taller than 180 cm?
b) If 18 are chosen, what is the expected number of people who are taller than 180 cm?

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
a) to four significant figures.


b) mu+=+np+=+180%2A0.26+=+46.8, or 47, the expected number of people who are taller than 180 cm.