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binomial probability

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3 articles trouvés pour ce sujet.
A binomial probability problem 2008-01-08
rougi pose la question :
According to statistics of the company about 4% of the people who buy tickets do not arrive to the flight . The company sells 205 tickets to plane that has 200 places . Use the binomial distribution to calculate what is the probability that all the people who come to the flight get a place.
Harley Weston lui répond.
Colour blindness 2007-03-29
Katrina pose la question :
9% of men and .25% of woman can't distinguish between the colors red and green. This is the type of color blindness that causes problems with traffic lights. If 6 men are randomly selected for a study of traffic signal perceptions, find the probability that exactly two of them cannot distinguish between red and green.
Stephen La Rocque lui répond.
Three keys 1998-11-26
Karen Chan pose la question :
A man has a bunch of three keys, only one of which fits the lock of his front door.
When he comes home in the dark he tries the keys at random until he finds the one fits. Find the probability that in a week of five nights, he tries the right key first on at least one night.

Penny Nom lui répond.



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