is estimated that about 5% of the professors at Metro State University use illegal drugs. Suppose random drug testing is instituted by state law. The drug test used has certain error rates: 6% of the drug users receive a (false) negative test result, and 4% of the non-drug users receive a (false) positive test result. If they test me next week and the test result comes back positive, how likely is it that I actually do use illegal drugs?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
. It is estimated that about 5% of the professors at Metro State University use illegal
drugs. Suppose random drug testing is instituted by state law. The drug test used has
certain error rates: 6% of the drug users receive a (false) negative test result, and 4% of
the non-drug users receive a (false) positive test result. If they test me next week and the
test result comes back positive, how likely is it that I actually do use illegal drugs?
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