The number of typing mistakes that ann makes on a given


The number of typing mistakes that Ann makes on a given page has a Poisson distribution with a mean of 3 mistakes.

a. What is the probability that she makes exactly 7mistakes on a given page?

b. What is the probability that she makes fewer than 4 mistakes on a given page?

c. What is the probability that Ann makes no mistake on a given page?

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Mathematics: The number of typing mistakes that ann makes on a given
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