If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
If replacement, then:
3/12 * 5/12 = ?
a box contains 3 red marbles, 4 white marbles and 5 yellow marbles.find the probability that a red marble and then a yellow marble to be pick up on two successives drawing then there is a replacement of the marbles
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