Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Anonymous
Anonymous asked in Science & MathematicsMathematics · 3 months ago

Someone please help me ?

A letter of the alphabet is selected at random . Find the probability that the letter is a :

a) vowel ( exclude y )

b) consonant (include y)

3 Answers

Relevance
  • ?
    Lv 7
    3 months ago
    Favorite Answer

    The vowels are A,E,I,O and U.  That means you have a probability of 5/26 of selecting a vowel at random, because there are 26 letters in the alphabet.

    That means there is a 21/26 probability of selecting a consonant.

    Think of probability in relation to a coin.  A coin has one side head and one side tails.  There are only two choices, so the chance of flipping the coin and it landing on heads is 1/2.  1 head out of two choices.  In the alphabet, there are 26 letters you can draw.  There is only 1 letter A, so the probability of selecting A when all the letters are put in a bucket is 1 in 26, or 1/26.   Five of the letters are vowels, so there is a 5/26 chance of drawing a vowel.  

  • 3 months ago

    Seriously?

    a) 5 vowels, 26 letters, probability ≈ 19.23%

    b) consonant = not vowel = 1 - 19.23% = 80.77%

  • david
    Lv 7
    3 months ago

    a.   5/26

    b.  21/26

Still have questions? Get your answers by asking now.