Question
A coin is tossed successively three times. Find the
probability of getting exactly one tail or two tails?Solution
Sample Space : { TTH, THT, HTT, HHT, HTH, THH,HHH, TTT } E = { TTH, THT, HTT, HHT, HTH, THH, } n(E) = 6 P(E) = 6/8 = 3/4
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