Please, 1. read the posting guide 2. use a sensible subject line 3. this is NOT an "r question" 4. ask your teacher to explain your homeworks, but not this list
Uwe Ligges yuying shi wrote: > If there are two random variable X1 and X2 which have > a bivariate normal distribution with mean vector (10, > 10)and variance covariance matrix > [2 1.95 > 1.95 3] > > How to calculate the mean and variance of the function > Y=X1/X2? > > Thanks a lot! > xingyu > > ______________________________________________ > 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 ______________________________________________ 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