A single letter is selected at random from the word ‘PROBABILITY’. Find the probability that it is a vowel.

4/11

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2/11

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4/9

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5/11

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Solution

The correct option is A
4/11

Total number of outcomes = n(S) = 11

Let E be the event of picking a vowel = n(E) = 4

P(E) = $\frac{n (E)}{n (S)}$

= $\frac{4}{11}$

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