InterviewSolution
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InterviewSolution
| 1. |
Three unbiased coins are tossed. What is the probability of getting at most two heads? |
| Answer» Here S = {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH} Let E = event of getting at most two heads. Then E = {TTT, TTH, THT, HTT, THH, HTH, HHT}. P(E) = n(E) = 7 . n(S) 8 | |