A new medical test is designed to quickly detect whether someone is infected by SARS or not. The test result could be either positive or negative. A group of1250 persons have gone through the test among which 1175 are free of SARS infection. Among the 1175 healthy people, 1170 of them return negative test results; while among the remaining infected people, 73 of them return positive test results. Based on the above information, if positive test result is returned for another person, is he/she infected by SARS or not?

A new medical test is designed to quickly detect whether someone is infected by SARS or not. The test result could be either positive or negative. A group of1250 persons have gone through the test among which 1175 are free of SARS infection. Among the 1175 healthy people, 1170 of them return negative test results; while among the remaining infected people, 73 of them return positive test results. Based on the above information, if positive test result is returned for another person, is he/she infected by SARS or not?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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