SOLUTION: A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering
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Question 359869: A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering 3 OR 4 questions correctly Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering 3 OR 4 questions correctly
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Binomial Problem with n = 6 and p = 1/4
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P(3<= x <=4) = 6C3(1/4)^3(3/4)^4 + 6C4(1/4)^4(3/4)2
= 0.1648
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Cheers,
Stan H.
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