A COVID 19 vaccine has a 80% chance of being effective against Covid 19 - Omicron variant. The probability of being infected if a person is not vaccinated is 50%. In a certain province of Luzon, 25% of the people get vaccinated. If a person is randomly selected, find the probability that he or she will be infected with the virus?
A COVID 19 vaccine has a 80% chance of being effective against Covid 19 - Omicron variant. The probability of being infected if a person is not vaccinated is 50%. In a certain province of Luzon, 25% of the people get vaccinated. If a person is randomly selected, find the probability that he or she will be infected with the virus?
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.CT: Chapter Test
Problem 30CT: In a batch of 20 tires, 2 are known to be defective. If 4 tires are chosen at random, find the...
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A. 40%
B. 42.50%
C. 48.50%
D. 41.25%
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