SOLUTION: An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probalitiy that there is a least one correct answer.
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Question 532593: An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probalitiy that there is a least one correct answer. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probalitiy that there is a least one correct answer.
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P(1<= x <=10) = 1 - P(x = 0)
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P(at least one correct) = 1 - 10C0*(1/2)^0*(1/2)^10 = 1- (1/1024)
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Cheers,
Stan H.
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