SOLUTION: In a 540 page manuscript, there are 280 randomly distributed misprints. If a page is selected, find the probability that it has 2 misprints.

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Question 1081714: In a 540 page manuscript, there are 280 randomly distributed misprints. If a page is selected, find the probability that it has 2 misprints.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Poisson distribution-errors proportion to size, random, theoretically infinite.
280/540=0.5185 misprints/page is lambda
want P(x=2)=e^(-0.5185)*0.5185^2/2=0.08