The probability of getting a tail when tossing a fair coin is, 1/2, 0, The probability of a sure event is, 1, 0, If a die is thrown once, the probability of getting an even number is, 3/6, 1/6, The probability of an impossible event is always, 1, 0, When a card is drawn from a deck of 52 cards, the probability of getting a heart is, 1/13, 1/4.

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