A fair coin is tossed 3 times what is the probability of getting exactly 2 heads
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sample space for 3 coins is
HHH,HTT,THT,TTH,HHT,HTH,THH,TTT
probability of getting exactly 2 heads=3/8
HHH,HTT,THT,TTH,HHT,HTH,THH,TTT
probability of getting exactly 2 heads=3/8
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