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math

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Ten face-down cards spell the word "phonograph" one of Thomas Edison's most famous inventions. If you draw one what is the chance of drawing a. a vowel?
b. a letter of the alphabet?

  • math - ,

    3 vowels of 10 cards means p(vowel) = 3/10

    since all cards have a letter of the alphabet, p(letter)=1

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