part d, e and f
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
part d, e and f
Transcribed Image Text:In a study of the relationship between health risk and income, a large group of people living in
Massachusetts were asked a series of questions. Some of the results are shown in the table.
Smoke
Don't smoke
Total
Low
634
1846
2480
Income
Medium
332
1622
1954
High
247
1868
2115
Total
1213
5336
6549
(a) What is the probability that someone in this study doesn't smoke?
(b) What is the probability that someone in this study has low income?
(c) What is the probability that someone in this study either smokes or has low income or both?
(d) What is the probability that someone in this study smokes and has low income?
(e) What is the probability that someone in this study smokes given that he has low income?
(f) What is the probability that someone in this study doesn't smoke given that he has medium income?
Expert Solution
Step 1
Given that
Total = 6549 , Smoke = 1213
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