Charles claims that he can distinguish between beer and ale 80 percent of the time. Ruth bets that he cannot, and in fact, just guesses. To settle this, a bet is made: Charles is to be given ten small glasses, each having been filled with beer or ale, chosen by tossing a fair coin. He wins the bet if he gets seven or more correct. Find the probability that Charles wins if he has the ability he claims. Find the probability that Ruth wins if Charles is guessing.
Thanks so much for the help!!!