"Ethan Johnsons" <[EMAIL PROTECTED]> writes: > The expected number of bladder cancer over next 20 years a tire > industry is 1.8. Poission distribution is assumed to hold and 6 > reported deaths are caused by bladder cancer among the employees. > Trying to find how unusual this event is. > > > ppois(q=6, lambda=1.8, lower.tail = TRUE, log.p = FALSE) > [1] 0.9974306 > > not sure if ppois is the right one to use and the parameters...
I think not. However, we're not doing your homework. Instead, do the following x <- 0:10 cbind(x, p=round(dpois(x, lambda=1.8),4)) plot(x, dpois(x, lambda=1.8), type="h", lwd=2) abline(v=6) then apply(brains)... -- O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ R-help@stat.math.ethz.ch 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.
