Two coins, at least one head
Two fair coins are flipped. Given that at least one is heads, what is the probability both are heads? Give your answer as a decimal (to 2 decimals).
Show hints (2)+
- List the four equally likely outcomes and drop the one with no heads.
- It is not $1/2$ — the condition keeps three outcomes, not two.
Answer
Reveal answer →Final answer
0.33 (± 0.01)
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