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Example 3.18 from Statistics, 3.3 Two Basic Rules of Probability
e. Are having the disease and testing negative independent events?
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
e. No. P(N) = .85; P(N|B) = .02. So, P(N|B) does not equal P(N).
How did it go?