A box contains baseball caps. Each cap is either yellow or blue and has a letter from
to
on it. If one cap is to be selected at random from the box, what is the probability that the cap selected will either be yellow or have the letter
on it?
(1) The probability the cap will be yellow plus the probability the cap will have the letter on it is
.
(2) The probability the cap will both be yellow and have the letter on it is
.