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Mathematics 20 Online
OpenStudy (anonymous):

Find the probability of receiving a phone call during a long drive between 9:00 a.m. and 8:00 p.m. You may assume phone calls are equally likely at any time of the day. Use the slash ( / ) symbol to represent fractions and be sure to reduce fractions to their lowest terms.

OpenStudy (anonymous):

you have to use Poason probability .

OpenStudy (anonymous):

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