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Probability · Question 44 of 70

Question 44

MediumOriginal question

A letter is chosen at random from the word EXAMINATION. What is the probability that it is a vowel?

Options for question 44

Show the answer and explanation
CorrectNot quiteAnswer D

Correct answer: D

Explanation

  1. The word has 11 letters: E, A, I, A, I, O are vowels, 6 of them, counting repeats.

  2. Each position is equally likely, so the probability is 611\frac{6}{11}.

Worth noting

48=12\frac{4}{8} = \frac{1}{2} counts different letters only; a repeated letter is chosen more often.

Concept
Choosing a letter
Typical time
90 s
Your time
—
The rule this testsEqually likely outcomes
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Ten questions from Probability, at your own pace.

Practise this chapter →

Ten questions from Probability, at your own pace.