A coin is tossed 5 times. What is the probability that a head appears an even number of times?
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5H, 5T, (H, 4T), (T, 4H), (2H, 3T) (3H, 2T), i.e. 6 outcomes in all. Therefore the probability that head appears an odd number of times = 3/6 =1/2 (In only three outcomes out of the six outcomes, head appears an odd number of times).
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Answer:
2/5 must be accurate for this
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