# If three coins are tossed simultaneously, find the probability of the following events Event A: To get no head. - Algebra

Sum

If three coins are tossed simultaneously, find the probability of the following events

Event A: 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

Concept: Probability of an Event
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