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Two coins are tossed simultaneously. What is the probability of getting at most one head? |
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Answer» When two coins are tossed simultaneously then the possible outcomes obtained are {HH, HT, TH, and TT}. Here H denotes head and T denotes tail. Therefore, a total of 4 outcomes obtained on tossing two coins simultaneously. Number of favourable outcome(s) for no head is {TT} Number of favourable outcome(s) for one head is {HT, TH} Therefore, the event of getting at most one head has 3 favourable outcomes. These are TT, HT and TH. Therefore, the probability of getting at most one head = 3/4. |
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