Three unbiased coins are tossed. What is the probability of getting at most two heads?
Three unbiased coins are tossed. What is the probability of getting at most two heads? Correct Answer 7\/8
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)/n(S)=7/8.
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Feb 20, 2025