SOLUTION: in a multiple choice test the probability of getting the correct answer by guessing alone is 20%. what are the odds against getting the correct answer by pure guessing?
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Question 262131: in a multiple choice test the probability of getting the correct answer by guessing alone is 20%. what are the odds against getting the correct answer by pure guessing? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! in a multiple choice test the probability of getting the correct answer by guessing alone is 20%. what are the odds against getting the correct answer by pure guessing?
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Formula: Odds against = P(against)/P(for)
Your Problem:
P(correct) = 0.2
P(incorrect) = 0.8
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Odds against = 0.8/0.2 = 4:1
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Cheers,
Stan H.
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