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Toss a fair coin two times what is the probability of obtaining a head

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解答

Tossafaircointwotimeswhatistheprobabilityofobtainingahead

解答

21​
+1
十进制
0.5
求解步骤
The possible outcomes when \mathrm{a coin is thrown} is {H,T}.
Therefore, the number of possible outcomes: 2
The number of favorable outcomes of \mathrm{obtaining a head}: 1
Probability =totalnumberofoutcomesnumberoffavorableoutcomes​=21​

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