Please help with R stuido. how to find the probabiltity. If we have a sample of 9 students, what is the probability that exactly 4 of them started at UC Merced as first-year students?

In this week's LearnR tutorial, we will focus on the probability mass function for the binomial distribution XBin(n,p),0p1, P(k)=(nk)pk(1p)nk and suppose that 18 percent of UC Merced students were transfer students (otherwise undergradutes began their UC Merced career as first-year students). Binomial Distribution Exactly If we have a sample of 8 students, what is the probability that exactly 3 of them are transfer students? dbinom(3,8,0.18) [1] 0.1210807 If we have a sample of 9 students, what is the probability that exactly 4 of them started at UC Merced as first-year students? 1 dbinom (4,9,0.18) [1] 0.04903767 But no need to fret, try it again