Suppose that a drug test has a 0.94 probability of successfully identifying a drug user, but...
Suppose that a drug test has a 0.94 probability of successfully identifying a drug user, but has a 0.09 probability of reporting a false positive. A company drug tests it's employees and 12% of them test positive for drug use.
Let T denote "tests positive for drug use" and D denote "drug user."
The probability 0.94 above refers to?
The probability 0.09 above refers to?
The percentage 12% above refers to?
What is the probability a random employee of this company is a drug user?
Find:
P(T and Dc)=
P(Tc or Dc)=
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