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OpenStudy (anonymous):
434 x43
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OpenStudy (anonymous):
5/20 = 1/4
OpenStudy (anonymous):
No.
OpenStudy (anonymous):
There are 20 choose 4 possibilities. The probability that a single guess is correct is 1 over this value. The probability of being wrong is 1 - this number. The probability of being wrong on all five guesses is the probability of being wrong, to the fifth power. The probability of one guess being correct is 1 - this last probability.
OpenStudy (anonymous):
Does that make sense? I'm not sure what terminology you're used to using.
OpenStudy (anonymous):
ok yeah sure
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