my guess is that ppois calculates greater than so ( since we are dealing in a discrete world ) greater than or equal to 33 is the same as greater than 32. But I am not familiar with ppois so you should check that this is what is happening.
I think someone else already told you that you shouldn't use this site for homework but I guess this could be not related to homework so I answered ? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ethan Johnsons Sent: Thursday, September 28, 2006 9:57 AM To: [email protected] Subject: [R] ppois 33 died overa 10-year period from COPD, whereas only 24 such deaths could be expected based onstatewide mortality rates. I came up with ppois(q = 33, lambda = 24, lower.tail = FALSE), but it seems it is ppois(q = 32, lambda = 24, lower.tail = FALSE). I am confused with the q value. Why is it 32 instead 33? thx much ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -------------------------------------------------------- This is not an offer (or solicitation of an offer) to buy/se...{{dropped}} ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
