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OpenStudy (anonymous):
Janie flips a coin 70 times and records if it comes up heads. If getting heads is a success, what is the probability of a failure? A)0.2 B)0.7 C)0.5 D)1.00
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OpenStudy (kropot72):
If the coin is fair, the theoretical probability of not getting heads ("failure") is 0.5.
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