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

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

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Given, ‘ASSASSINATION’

No. of A's = 3; No. of S's = 4; No. of I's = 2; No. of N's = 2; No. of T = 1; No. of O = 1

No. of letters = 13

No. of consonants = {4 S's,2 N's,T} = 7

One letter is selected:

n(S) = ^{13}\textrm{C}_{1} = 13

Let E be the event of getting a consonant.

n(E) = ^{7}\textrm{C}_{1} = 7

\therefore P(E) = \frac{7}{13}

Posted by

HARSH KANKARIA

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