Question
‘A’ and ‘B’ play a game involving tossing a coin 4
times. ‘A’ wins if exactly two heads appear. Otherwise, ‘B’ wins. Find the probability that ‘A’ wins the game.Solution
Total number of outcomes = 2 4 = 16
Number of favourable outcomes (exactly 2 heads) = C(4,2) = 6
Probability that ‘A’ wins = 6/16 = 3/8
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