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Question
Three coins are tossed together. Write all the possible outcomes. Now, find the probability of getting at most two heads.
Solution
When three coins are tossed, possible outcomes are:
HHH, HHT, HTH, HTT, THH, THT, TTH, TTT
Total possible outcomes = 8
Favorable outcomes for at most two heads = HHT, THH, HTH, HTT, THT, TTH, TTT
Number of favorable outcomes = 7
P(at most two heads) = `7/8`
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