2) Reliability of Testing. A certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 80% of the time if the person has the virus and 5% of the time if the person does not have the virus. (This 5% result is called a false positive.) Let A be the event "the person is infected" and B be the event "the person tests positive." a. Using Bayes' Theorem, if a person tests positive, determine the probability that the person is infected. b. Using Bayes' Theorem, if a person tests negative, determine the probability that the person is not infected. %3D

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.2: Probability
Problem 3E: The conditional probability of E given that F occurs is P(EF)=___________. So in rolling a die the...
icon
Related questions
Question
2) Reliability of Testing. A certain virus infects one in every 200 people. A test used to detect
the virus in a person is positive 80% of the time if the person has the virus and 5% of the time if
the person does not have the virus. (This 5% result is called a false positive.) Let A be the
event "the person is infected" and B be the event "the person tests positive."
a. Using Bayes' Theorem, if a person tests positive, determine the probability that the person
is infected.
b. Using Bayes' Theorem, if a person tests negative, determine the probability that the
person is not infected.
Transcribed Image Text:2) Reliability of Testing. A certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 80% of the time if the person has the virus and 5% of the time if the person does not have the virus. (This 5% result is called a false positive.) Let A be the event "the person is infected" and B be the event "the person tests positive." a. Using Bayes' Theorem, if a person tests positive, determine the probability that the person is infected. b. Using Bayes' Theorem, if a person tests negative, determine the probability that the person is not infected.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Recommended textbooks for you
Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
College Algebra
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning