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Joseph kept 26 cards in a cap, bearing one English alphabet on each card. One card is drawn at random. What is the probability that the card drawn is a vowel card ?

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Each card bears an English alphabet.

∴ n(S) = 26

Let A be the event that the card drawn is a vowel card.

There are 5 vowels in English alphabets.

∴ A = {a, e, i, o, u} 

∴ n(A) = 5

∴ The probability that the card drawn is a vowel card is 5/26.

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