求教一道数学概率题,为什么是1/8?
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All of you got it right, and there are so many ways to reach a probability solution.. here is the official approach given:
Total possible outcomes: WWW, WWL, WLW, LWW, LWL, LLW, WLL, LLL. Total 8.
Favorable outcomes: WWW. Total 1.
Probablity=1/8
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