(adsbygoogle = window.adsbygoogle || []).push({}); Poisson Distrobution-HELP!! URGENT!!!

the problem:

The Breakdowns of a robot follow a Poisson Dist. with an avg of .5 breakdowns per 8-hour workday. If this robot is placed in service at the beginning of the day, find the probability that:

a. It will break down durring the day.

b. It will work for at least 4 hours without breakdown

c. Does what happend the day before have any effect on your answers? why?

I'm a newb to probability and am I'm haveing trouble figuring out where to begin. I know that the rate(lamda) has something to do with the percent of break downs and the work day. Is it .5*workday or just .5. I just don't know where to begin with this problem.

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# Poisson Distrobution-HELP

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