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Question

One card is drawn from a well shuffled deck of 52 cards. If each outcome is equally likely, calculate the probability that the card will be
(1). diamond card
(2). not an ace
(3). a club card
(4). not a black card

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Solution

Total number of cards in a deck=52Total number of possible outcomes=52a. Number of diamond cards=13Number of favourable outcomes=13Probability of getting a diamond card=number of favourable outcomesTotal number of possible outcomesSo, Probability of getting a diamond card=1352=14b. Number of aces in a deck=4So, number of non-aces in a deck=52-4=48Number of favourable outcomes=48Probability of getting a non-ace card=number of favourable outcomesTotal number of possible outcomesSo, Probability of getting a non-ace card=4852=1213c. Number of clubs in a deck=13Number of favourable outcomes=13Probability of getting a club card=number of favourable outcomesTotal number of possible outcomesSo, Probability of getting a club card=1352=14d. Number of black cards in a deck=26Number of non-black cards=52-26=26Number of favourable outcomes=26Probability of getting a non-black card=number of favourable outcomesTotal number of possible outcomesSo, Probability of getting a non-black card=2652=12

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