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Unformatted text preview: find your thesis, what is the probability that your thesis is on disk i , for i = 1, 2, 3, 4? Problem 3. A new test has been developed to determine whether a given student is overstressed. This test is 95% accurate if the student is not overstressed, but only 85% accurate if the student is in fact overstressed. It is known that 99.5% of all students are overstressed. Given that a particular student tests negative for stress, what is the probability that the test results are correct, and that this student is not overstressed? Problem 4. A magnetic tape storing information in binary form has been corrupted, so it can only be read with bit errors. The probability that you correctly detect a 0 is 0.9, while the probability that you correctly detect a 1 is 0.85. Each digit is a 1 or a 0 with equal probability. Given that you read a 1, what is the probability that this is a correct reading?...
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 Fall '09
 Qian
 Conditional Probability, Probability, Probability space, DISC assessment, DISC

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