The drug-test a certain company gives has a 98% sensitivity rating and a 97% specificity rating. Assume 20% of the employees use the drug this test is used for. a.Given an employee tests positive what is the probability they are actually using the drug? b.If really only 2% of employees are using the drug this test is for; then what is the probability that a person who tests positive is actually using the drug?
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.
The drug-test a certain company gives has a 98% sensitivity rating and a 97% specificity rating. Assume 20% of the employees use the drug this test is used for.
a.Given an employee tests positive what is the
b.If really only 2% of employees are using the drug this test is for; then what is the probability that a person who tests positive is actually using the drug?
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