a coin is tossed three times.find the probability of getting exactly two heads.
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A coin is tossed 3 times.
So, possible outcomes:-HT, TH, TT, HH
So, favourable elementary events=1
Total number of elementary events=4
So, probability=favourable elementary events/total elementary events
=1/4
So, possible outcomes:-HT, TH, TT, HH
So, favourable elementary events=1
Total number of elementary events=4
So, probability=favourable elementary events/total elementary events
=1/4
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