Question

# The company you work for uses a drug test that is 96% accurate. This means that each time you use it, there is a

4% chance of a "false positive" result (that the test will incorrectly indicate that a "clean" individual is using drugs).

100 employees are tested. (Let's assume employees' drug use is independent, and that they are actually all clean and not using drugs.) What is the probability of obtaining at least one false positive?

A.Exactly 4%

B.Between 4-20%

C.Between 21-50%

D.Between 51-90%

E.More than 90%

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