Among the people that are infected with a certain virus, 32% have strain A, 59% have strain B, and the rest have strain C. Moreover, 21% of those infected with strain A exhibit symptoms, 16% of those infected with strain B exhibit symptoms, and 63% of those with strain C exhibit symptoms. a. If a person has the virus and exhibits sym
Among the people that are infected with a certain virus, 32% have strain A, 59% have strain B, and the rest have strain C. Moreover, 21% of those infected with strain A exhibit symptoms, 16% of those infected with strain B exhibit symptoms, and 63% of those with strain C exhibit symptoms. a. If a person has the virus and exhibits sym
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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Question
Among the people that are infected with a certain virus, 32% have strain A, 59% have strain B,
and the rest have strain C. Moreover, 21% of those infected with strain A exhibit symptoms,
16% of those infected with strain B exhibit symptoms, and 63% of those with strain C exhibit
symptoms.
a. If a person has the virus and exhibits symptoms of it, what is the
have strain C?
b. If a person has the virus but doesn’t exhibit any symptoms of it, what is the probability
that they have strain A?
c. What is the probability that a person who has the virus does not exhibit symptoms?
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