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 medicinecompany has developed a new medicine for treatment of this infection. To test the effectiveness of the medicine, the companyselected 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=

It is given that n = 11 and p = 0.8.

Answered: find the probability P₁ that at least 9…

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Probability

find the probability P₁ that at least 9 out of 11 patients will recover.

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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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
=

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