If a letter is selected randomly from the word 'PROBABILITY', what is the probability that it is a vowel?
2/11
3/11
5/11
4/11
A single letter is selected at random from the word 'PROBABILITY'. What is the probability that it is a vowel ?
A word consists of 11 letters in which there are 7 consonants and 4 vowels. If 2 letters are chosen at random, then the probability that all of them are consonants, is