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A container contains two red, three yellow, and four green cards.
Two cards are selected at random, one after the other and without replacement, from the container.
Calculate the probability { the first card is red AND the second card is green }.
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In all, there are 2 + 3 + 4 = 9 cards, when the experiment starts.
P(1st card is red and 2nd card is green) = = = = . ANSWER
Solved.
The formula is SELF-EXPLANATORY.
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Notice how I edited your post to make the problem as clear as possible.