Question

what is the probability of getting exactly two tails when three coins are tossed simultaneously

Answer 1

Sample Space ={(H, H, H), (T, T, T), (H T, H), (T, H, T), (T, H, T), (H, H, T), (T, H, H), (T, T, H)}
Therefore, Number of favorable outcomes ={(T, H, T), (T, T, H)}
THEREFORE, P(Exactly two tails) =2/8=1/4.(answer).

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