DISCRETE STRUCTURE b) The probability that a randomly chosen male has pneumonia problem is 0.60. Smokinghas substantial adverse effects on the immune system, both locally and throughout thebody. Evidence from several studies confirms that smoking is significantly associatedwith the development of bacterial and viral pneumonia. 80% of males who havepneumonia problem are smokers. Whilst 40% of males that do not have pneumoniaproblem are smokers.i.What is the probability that a male chosen do not have pneumonia problem?ii. Determine the probability that a selected male has a pneumonia problem giventhat he is a smoker.

here use tree structure define events D =male have pneumonia S = male is smoker

i. What is the probability that a male chosen do not have pneumonia problem? ii. Determine the probability that a selected male has a pneumonia problem given that he is a smoker.

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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DISCRETE STRUCTURE

b) The probability that a randomly chosen male has pneumonia problem is 0.60. 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 40% of males that do not have pneumonia
problem are smokers.
i.
What is the probability that a male 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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