Two players, A and B alternately and independently flip a coinand the first one who flip a head on top will win. Assume player Aflips first. If the coin is fair, what is the probability that Awins?If A tossed N+1 times, B tossed N times, what’s theprobability that A gets more heads than B?If A and B each tosses afair coin N times. Find the probability that they get the samenumber of heads.
