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April 18, 2014

Homework Help: probability

Posted by 12-year-old-poet on Tuesday, January 31, 2012 at 1:01pm.

There is a .97 chance that no accident will occur during any particular day at a racetrack of local importance. the probability of one accident a day is .02, and the probability of two accidents is .01.

a. What is the expected number of accidents in a day?
b. What is the expected number of accidents in ten days?

I just don't understand how to set these questions up and any help would be much appreciated.

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