find the probability P₁ that at least 9 out of 11 patients will recover.
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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How was the correct answer of 0.6174 attained?
![Historical statistics showed that every person infected by a virus will recover independently with probability 0. 8. A medicine
company has developed a new medicine for treatment of this infection. To test the effectiveness of the medicine, the company
selected at random 11 patients infected by the virus and treated with the medicine. 9 patients recovered shortly thereafter.
Assume the medicine is completely ineffective,
1. find the probability P₁ that at least 9 out of 11 patients will recover.
P1 0.6174
=](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1467f162-7185-45ab-925a-2589d3c8cce7%2F8d3ab70d-9bca-46f4-9b5d-7548573a0ad5%2F7v0witp_processed.png&w=3840&q=75)
Transcribed Image Text:Historical statistics showed that every person infected by a virus will recover independently with probability 0. 8. A medicine
company has developed a new medicine for treatment of this infection. To test the effectiveness of the medicine, the company
selected at random 11 patients infected by the virus and treated with the medicine. 9 patients recovered shortly thereafter.
Assume the medicine is completely ineffective,
1. find the probability P₁ that at least 9 out of 11 patients will recover.
P1 0.6174
=
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