what is the probability of drawing a 4 or a red card from a standard deck of cards?
+5265 Ok, there are 52 cards in a standard deck of cards.
24 of those cards are red but not a 4. 2 of those are a 4, but not red. 2 of those cards are both a red and a 4.
24+2+2=28.
So the probability of drawing a 4 or a red card is 28/52.
There are 26 red cards and 4 'fours' in the deck......BUT two of the 'fours' are red so you only have TWO additional chances to get a 'winner' card.... 26 + 2 = 28 28/52 chance you will get a red card or a 'four' 14/26 or 7/13 chance
+5265 Ok, there are 52 cards in a standard deck of cards.
24 of those cards are red but not a 4. 2 of those are a 4, but not red. 2 of those cards are both a red and a 4.
24+2+2=28.
So the probability of drawing a 4 or a red card is 28/52.
