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On tossing three coin simultaneously . Find the probability of getting (1) 3 tails

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Three coins are tossed simultaneously.

Possible outcomes = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}

Number of total outcomes = 8

(a) Let A be the event of getting three tails

Thus, possible outcomes = {TTT} = 1

P(three tails) = 1/8

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