a bag holds 4 red marbles and 4 green marbles . if you removed two randomly selected marbles from the bag , without replacement , what is the probability that both would be red ?
"probability of selecting first red marble = 4 / 8 probability of selecting second red marble without replacement = 3 / 7 final probability = 4 / 8 * 3 / 7 = 3 / 14 the correct answer is c ."
divide(choose(4, 4), choose(add(const_2.0, 4), const_2))