Hypothetical case: This is a farm that I divided into 10 regions, and I put that the probability of finding a species of cows in this area is 0.3.

n <-10 #number of regions

p <- 0.3#probability of success in each trial

How can I calculate and plot the density function and find the mean and variance of the random variable?

In terms of probabilities, is it possible to find 6 or more regions with the cows? How I can do it or with what function?