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116 avcoins are tossed. Find the probability of the events:2. Two(i) at least one tail turns up(ii) no head turns up.(iii) at the most one tail turns up. |
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Answer» Sample space,S= {HH,HT,TH,TT}n(S)=4 Event A: at least one tail turns up.A={HT,TH,TT}n(A)=3P(A)=n(A)/n(S) =3/4Event B: Event B: no heads turn upB={TT}n(B)=1P(B)=n(B)/n(S) =1/4Event C: at the most one tail turns up.C={HH,HT,TH}n(C)=3P(C)= n(C)/n(P) = 3/4I hope it's help you and sorry for half answer |
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