A bag has 4 green marbles, 3 red marbles, and 3 yellow marbles. What is the probability that you pick. a red marble, do not replace it, and pick another red marble?
The bag has a total of 10 marbles. For the first pick, the probability of getting a red is 3/10 as there are only 3 red out of the 10 marbles. For the second, there are only 2 red and 9 total number of marbles. The probability of picking red is 2/9. The final probability asked is the product of these probabilities which is equal to 1/15.
