Answered: Time until no symptoms < 3 months 3 to…

Time until no symptoms < 3 months 3 to 6 months 6 to 12 months Drug 1 22 54 30 Experimental group Drug 2 Drug 3 35 57 28 31 44 32 Control 47 24 41

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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Question

The patients were grouped in 4 categories: one for each drug, and a control group. The patients in the control group were not given any drug to treat the disease. The following table shows the results of the study:

Suppose we randomly select a patient from this study,

1. If you know that the patient we selected was cured in less than three months, what is the probability that she was treated with drug 1?

2. What is the probability that the patient was treated with any of the drugs and was cured between 6 and 12 months from the start of the treatment?

Time until no
symptoms
< 3 months
3 to 6 months
6 to 12 months
Drug 1
22
54
30
Experimental group
Drug 2
Drug 3
35
57
28
31
44
32
Control
47
24
41

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