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प्रश्न
Three fair coins are tossed together. Find the probability of getting atmost one head
उत्तर
Three fair coins are tossed together
Sample spade = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}
n(S) = 8
Let C be the event of getting atmost one head
C = {HTT, THT, TTH, TTT}
n(C) = 4
P(C) = `("n"("C"))/("n"("S")) = 4/8 = 1/2`
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