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The number if traffic accidents that occur on a particular stretch of road during a month...

The number if traffic accidents that occur on a particular stretch of road during a month follows a Poisson distribution with a mean of 6.4

a) Find the probability that less than 3 accidents will occur next month on this stretch of road.

b) Find the mean and standard deviation of the number of traffic accidents.

math   Statistics-And-Probability   
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