Two of the five flips have chosen to be heads. I guess you could think of it that way by the random gods or whatever you want to say. So this is the fraction of the 32 equally likely possibilities. So this is the probability that X equals two. Well what's this going to be? Well I'll do it right over here, and actually no reason for me to have to keep switching colors. So five choose two is going to be equal to five factorial over two factorial times five minus two factorial.