From the letters of the word 'POSTER' a letter is selected. What is the probability that the selected letter is a vowel?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → \(\frac{1}{3}\)
Probability = favourable outcomes ÷ total outcomes, and each of the six letters is equally likely to be chosen.
Letters of POSTER: P, O, S, T, E, R, so 6 outcomes
Vowels among them: O and E, so 2 favourable outcomes
Probability \(\displaystyle =\frac{2}{6}=\frac{1}{3}\)