I am trying to simulate a series of ones and zeros (1 or 0) and I am using 
"rbinom" but realizing that the number of successes expected is not accurate. 
Any advice out there.

This is the example:

N<-500
status<-rbinom(N, 1, prob = 0.15)
count<-sum(status)

15 percent of 500 should be 75 but what I obtain from the "count" variable is 
77 that gives the probability of success to be 0.154. Not very good.

Is there another way beyond using "sample" and "rep" together?


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