A single letter is selected at random from the word 'PROBABILITY'… - Vidyadip

MCQ

A single letter is selected at random from the word 'PROBABILITY'. The probability that it is a vowel is

A
$\frac{3}{11}$
✓
$\frac{4}{11}$
C
$\frac{2}{11}$
D
$\frac{5}{11}$

✓

Answer

Correct option: B.

$\frac{4}{11}$

(b):Total number of letters in the word
'PROBABILITY' = 11
$\therefore \quad$ Total number of possible outcomes $=11$
Vowels in the word 'PROBABILITY' are $\{ O , A , I , I \}$
So, favourable number of outcomes $=4$
$\therefore \quad$ Required probability $=\frac{4}{11}$

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