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"using a breath test" and `using a blood test". Are these events independent?

"using a breath test" and `using a blood test". Are these events independent?

A First Course in Probability (10th Edition)
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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Consider the drivers who are suspected of driving under the influence of alcohol. Police use two techniques to check level alcohol: a breath test or a blood test. They use a breath test for 90% of cases, a blood test for 10% of cases, and both techniques are used for 9% of cases. Consider a suspect of driving under the influence of alcohol, and define the events "using a breath test" and `using a blood test". Are these events independent? no yes given information is insuffisant
Transcribed Image Text:Consider the drivers who are suspected of driving under the influence of alcohol. Police use two techniques to check level alcohol: a breath test or a blood test. They use a breath test for 90% of cases, a blood test for 10% of cases, and both techniques are used for 9% of cases. Consider a suspect of driving under the influence of alcohol, and define the events "using a breath test" and `using a blood test". Are these events independent? no yes given information is insuffisant
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