1. a bag contains 3 red marbles and 4 blue marbles. two marbles are drawn at random without replacement.
what is the probability that the first marble drawn is red and the second marble is blue?
2. a bag contains 3 red marbles and 4 blue marbles. two marbles are drawn at random without replacement. what is the probability they will both be blue?
3. two cards are chosen at random without replacement from a pack of 52 playing cards.
the first card chosen is an ace, what is the probability that the first card chosen is an ace and that the second card chosen is a king?
4. a box contains 5 green pencils and 7 yellow pencils. two pencils are chosen at random from the box without replacement.
what is the probability they are both yellow?