[R] r-help using random generating

[Cheryl H.]

To whom it may concern:
Given that my sample size is n, my mean is 100, and my sd is 10, I need to 
use a random number generator (which I believe is the function 
rnorm(5,100,10)), but I need to repeat it a large number of times, and then 
plot the sampling distributions of the sample means, sd's, and variances of 
those generated sets. I'm having a real hard time trying to figure out how 
to do this easily. Please help if possible! Thanks,
Cheryl