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15.(ii) Five cards—the ten, jack, queen, king and ace of diamonds, are well-shuffled with their face downwards. One card is then picked up at random. If the queen is drawn and put aside, what is the probability that the second card picked up is (a) an ace?
Answers (1)
When the queen is kept aside, there are only 4 cards left
Hence, the total possible outcomes = 4
(2a) There is only one ace.
Hence, favourable outcome = 1
Therefore, the probability of getting an ace is 0.25
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