Find the indicated probabilities using the geometric​ distribution, the Poisson​ distribution, or the binomial distribution. Then determine if the events are unusual. If​ convenient, use the appropriate probability table or technology to find the probabilities.
A newspaper finds that the mean number of typographical errors per page is eight. Find the probability that​ (a) exactly four typographical errors are found on a​ page, (b) at most four typographical errors are found on a​ page, and​ (c) more than four typographical errors are found on a page.
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Part 1
​(a) P(exactly four typographical errors are found on a ​page)equals
  
0.0573
​(Round to four decimal places as​ needed.)
Part 2
​(b) P(at most four typographical errors are found on a ​page)equals
  
enter your response here
​(Round to four decimal places as​ needed.)