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.
Question content area bottom
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.)
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.
Question content area bottom
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.)