You are dealt one card from a 52-card deck. Find the probability that you are dealt a nine or a red card.
There are 4 nines in a deck of 52 cards and there are 26 red cards (13 hearts and 13 diamonds). However, the probability of being dealt both a nine and a red card is already included in the probability of being dealt a red card. Therefore, we need to calculate the probability of being dealt either a nine or a red card.
There are 4 nines and 26 red cards, but we need to subtract the one red nine because we counted it twice. So, there are 4 - 1 = 3 nines.
There are a total of 52 cards, so the probability of being dealt a nine or a red card is (3 + 26)/52 = 29/52.
Therefore, the probability of being dealt a nine or a red card is 29/52.