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The probability that a person has a certain disease is 0.03. Medical diagnostics tests are available to determine whether the pers

By Josephine

The probability that a person has a certain disease is 0.03. Medical diagnostics tests are available to determine whether the person has actually the disease. If the disease is actually present, the probability that the medical diagnostics will show a positive result is 0.9. If the disease is not actually present, the probability that the test will show positive result is 0.02. Suppose the medical diagnostic test has shown positive result. What is the probability that the disease is actually present ? What is the probability of a positive test result ?

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Josephine

A can do a job in 4 1/2days, and B in 9 days.
2.
(1) How long will they take to complete the job together?​
(2) If

1. If cos0.sinO=1/2 then 0
p
options:
1.0⁰
2.30⁰
3.45⁰
4.90⁰​

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