4. The probability that a randomly chosen male has pneumonia problem is 0.40. Smoking has substantial adverse effects on the immune system, both locally and throughout the body. Evidence from several studies confirms that smoking is significantly associated with the development of bacterial and viral pneumonia. 80% of males who have pneumonia problem are smokers. Whilst 30% of males that do not have pneumonia problem are smokers. i. What is the probability that a male is chosen do not have pneumonia problem? ii. Determine the probability that a selected male has a pneumonia problem given that he is a smoker.

4. The probability that a randomly chosen male has pneumonia problem is 0.40. Smoking has substantial adverse effects on the immune system, both locally and throughout the body. Evidence from several studies confirms that smoking is significantly associated with the development of bacterial and viral pneumonia. 80% of males who have pneumonia problem are smokers. Whilst 30% of males that do not have pneumonia problem are smokers. i. What is the probability that a male is chosen do not have pneumonia problem? ii. Determine the probability that a selected male has a pneumonia problem given that he is a smoker.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

The chaper is Probability.

4.
The probability that a randomly chosen male has pneumonia problem is 0.40. Smoking
has substantial adverse effects on the immune system, both locally and throughout the
body. Evidence from several studies confirms that smoking is significantly associated
with the development of bacterial and viral pneumonia. 80% of males who have
pneumonia problem are smokers. Whilst 30% of males that do not have pneumonia
problem are smokers.
i.
What is the probability that a male is chosen do not have pneumonia problem?
ii.
Determine the probability that a selected male has a pneumonia problem given
that he is a smoker.

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