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Probability

Short Answer Type

431. A letter is chosen at random, from the word ‘ASSASSINATION’. Find the probability that letter is (i) a vowel (ii) a consonant

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432. There are 4 men and 6 women in the city council. If one council member is selected for a committee at random, how likely is that it is a woman?

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433. A coin is tossed twice, What is the probability that at least one tail occurs?

A coin is tossed twice.
∴ Sample space S = {HH, HT, TH, TT}
$rightwards double arrow$ n(S) = 4
Event C: At least one tail occurs
$rightwards double arrow$ C = {HT, TH, TT}
$rightwards double arrow$ n(C) = 3

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