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December 25, 2014

Homework Help: xiamen university

Posted by agak on Sunday, October 28, 2012 at 2:10pm.

The probability that a person catches a cold during the cold and flu season is 0.62. Assume that 5 people are chosen at random.
A) What is the probability that exactly four of them will catch a cold?
B) What is the probability that three or more of them will catch a cold?
C) On average, how many of these five people would you expect to catch a cold?

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