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Question

Two coins are tossed simultabeously. Find the probability of getting:
(i) at least one Tail
(ii) atmost two Head
(iii) one Head


Solution

Total outcomes when two coins are tossed $$= HH, HT, TH, TT$$
(i) Favorable $$= HT, TT, TH \Rightarrow P = \dfrac{3}{4}$$
(ii) Favorable $$=HH, HT, TH, TT \Rightarrow P = \dfrac{4}{4} = 1$$
(iii) Favorable $$= HT, TH \Rightarrow P = \dfrac{2}{4} = \dfrac{1}{2}$$

1226904_1398225_ans_af2781186620471f84248a21871b78f6.jpg

Mathematics

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