A laboratory test for steroid use in professional athletes has detection rates given in the following...

A laboratory test for steroid use in professional athletes has detection rates given in the following table:

Steroid use Test Result

+ -

Yes .99 .01

No .10 .90

a. What is the probability that a professional athlete chosen at random will have a negative test result for steroid use?

b. If the athlete tests positive, what is the probability that he has actually been using steroids?

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Expert Solution

orchestra answered 1 year ago

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