Tails or heads?
Probability
Level
2
A fair coin is tossed three times in succession. If the first toss produces a head, then the probability of getting exactly two heads in three tosses is:
The answer is 0.5.
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1 solution
If the first toss is a head, then probability of getting 2 heads in three tosses becomes same as the probabilityoof getting 1 head in remaining two tosses, which is (h,t), (t,h) out of (h,h), (h,t), (t,h), (t,t). So the answer is 0.5