Question
In a box there are 3 red, 6 blue, and 9 yellow cards.
One card is picked up randomly. What is the probability that it is neither red nor yellow?Solution
Total number of cards = 9 + 3 + 6 = 18 Let E= event that the card drawn is neither red nor yellow = event that the card drawn is blue. ⴠn(E) = 6 ⴠP(E) = 6/18 = 1/3
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