A study has been done to determine whether or not a certain drug leads to an improvement in symptoms for patients with a particular medical condition. The results are shown in the following table. What is the probability that a patient shows improvement if it is known that the patient did not take the drug?

A study has been done to determine whether or not a certain drug leads to an improvement in symptoms for patients with a particular medical condition. The results are shown in the following table. What is the probability that a patient shows improvement if it is known that the patient did not take the drug?

Name: A study has been done to determine whether ornot a certain drug leads
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Description: A study has been done to determine whether ornot a certain drug leads to an improvement insymptoms for patients with a particular medicalcondition. The results are shown in the followingtable. What is the probability that a patientshows improvement

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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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

Topic Video

Question

A study has been done to determine whether or
not a certain drug leads to an improvement in
symptoms for patients with a particular medical
condition. The results are shown in the following
table. What is the probability that a patient
shows improvement if it is known that the
patient did not take the drug? *
Improvement
No Improvement
Total
Drug
No Drug
270
530
800
120
280
400
Total
390
810
1200
2/3
O 3/10
53/800
27/80

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