4. Probability

Which of the following situations requires the use of the $addition$ rule in probability?

A card is drawn from a standard deck of 52 cards. What is the probability that the card is a diamond or a king?

For two mutually exclusive events A and B, compute $P\(\left\)(A\(\cup\) B\(\right\))$ if $P\(\left\)(A\(\right\))=0.15$ and $P\(\left\)(B\(\right\))=0.32$

If a single card is randomly selected from a deck of cards, what is the probability of selecting an ace or a king?