2)Three cards are drawn at random from a standard deck without replacement. What is the probability that all three cards are hearts?
3)Three cards are drawn at random from a standard deck with replacement. What is the probability that exactly two of the three cards are red?
4)Three cards are drawn at random from a standard deck without replacement. What is the probability that exactly two of the three cards are red?
5)Three cards are drawn at random from a standard deck with replacement. What is the probability that at least two of the three cards are red?
I am having trouble finding the correct answer when I am having to do the math to figure out the with replacement and without replacement. And I also don't understand the difference in the math I need to do to figure out the exactly two of the three cars and the at least two cards.