A single letter is selected at random from word “ PROBABILITY ”. probability that select

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14.Probability

easy

A single letter is selected at random from the word “$PROBABILITY$”. The probability that the selected letter is a vowel is

A

$\frac{2}{{11}}$

B

$\frac{3}{{11}}$

C

$\frac{4}{{11}}$

D

$0$

Solution

(c) Since there are one $A,$ two $I$ and one $O,$

hence the required probability $ = \frac{{1 + 2 + 1}}{{11}} = \frac{4}{{11}}.$

Standard 11

Mathematics

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