An insurance company has determined that each week an average of 9 claims are filed in...

An insurance company has determined that each week an average of 9 claims are filed in its Atlanta branch. What is the probability that during the next week at least 18 claims will be filed?

How to solve this problem without Excel? Thanks

Expert Solution

X ~ Poi ( )

Where = 9

Poisson probability distribution is

P(X) = e^-^X / X!

So

P(X >= 18) = 1 - P(X <= 17)

Using probability distribution table to find P(X <= 17)

= 1 - 0.9947

= 0.0053

orchestra answered 2 years ago

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