Question 1075656
p(d) = 2/6 = 1/3


binomial probability is used with p = 1/3 and q = 1 - p = 2/3


binomial probability formula is p(x) = p^x * q^(n-x) * c(n,x)


this becomes p(4) = (1/3)^4 * (2/3)^5 * c(9,4)


that looks like what you have.


when you evaluate it, you get p(4) = .2048468221.


from what i know, i believe you are correct.