Should i bunk

Our friend Goku is very sad when he realises that his attendance is way below but he can't help himself as he has to follow a strange startegy according to which his going or not going to college totally depends on a coin toss . Goku tosses the coin finite number of times and lists the outcomes. In the list if Heads comes three times in a row,He bunks and go back to bed. Goku is sad but wants t