Homework Help: stats

Posted by anonymous on Sunday, October 31, 2010 at 2:13pm.

Between 11 P.M. and midnight on Thursday night, Mystery Pizza gets an average of 5.7 telephone orders per hour.

a) Find the probability that at least 32 minutes will elapse before the next telephone order.

b) Find the probability that less than 17 minutes will elapse.

c) Find the probability that between 17 and 32 minutes will elapse

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