Ab 0 1. P k1-p n-k 077 1-0710-7 077 033 00022235661. N C x nx.
The formula can be understood as follows.
This means that the probability of success p does not change from trial to trial. HH heads 1st heads 2nd HT TH or TT. And the total number of those outcomes is. Textcfracpitimes textctext1-pitimes textc-text1textr Where p is the probability of an up move which in determined using the following equation.