Question

In: Statistics and Probability

2) Suppose the number of typos in the rough draft of a document is a Poisson...

2) Suppose the number of typos in the rough draft of a document is a Poisson random variable with an expected value of 1 typo per page. What is the probability that one page of the document has at least 1 typo?

Solutions

Expert Solution

Probability Mass Function of Poisson Distribution with mean = 1 is given by:

,

                           x = 0, 1, ...

P(at least 1 typo) = 1 - P(no typo) = 1 - P(X =0)

So,

Answer is:

0.6321

orchestra answered 2 years ago
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