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1. Computer Weekly is found to have an average of 3 misprints per page. What is the probability that:

the last page has 6 misprints (the magazine has a total of 98 pages).

2. (Original post by Jubba)
Computer Weekly is found to have an average of 3 misprints per page. What is the probability that:

the last page has 6 misprints (the magazine has a total of 98 pages).

Poisson? it involves rate (i.e. 3 misprints per page)
3. (Original post by Jubba)
Computer Weekly is found to have an average of 3 misprints per page. What is the probability that:

the last page has 6 misprints (the magazine has a total of 98 pages).

I may be wrong...
X~Po(3)

P(X=6) = ...

then use that result in a Binomial distribution, i.e. let Y be the random variable "the probability a page contains 6 misprints"
Y~(98, ...)

I'm not quite sure from the wording of the question, but if they mean ONLY the last page, then P(Y=1)

I'm probably wrong, but maybe this'll give you a hint
4. ye i think i got it now. thanks a lot.
5. (Original post by Jubba)
Computer Weekly is found to have an average of 3 misprints per page. What is the probability that:

the last page has 6 misprints (the magazine has a total of 98 pages).

Well it's a poisson, with lambda = 3. Events are independent so you find P(x=6) for the last page.

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Updated: June 19, 2004
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