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Question
If three coins are tossed simultaneously, find the probability of the event to get no head
Solution
Sample space,
S = {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}
∴ n(S) = 8
Let A be the event of getting no head.
∴ A = {TTT}
∴ n(A) = 1
∴ P(A) = `("n"("A"))/("n"("S"))`
∴ P(A) = `1/8`
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