Problem 34E: Chapter: CH6 Problem: 34E To determine whether drinking alcoholic beverages has an effect on the bacteria that cause ulcers, researchers...
View the step-by-step solution to:

Question

--------------------------

Screen Shot 2019-12-10 at 6.19.45</h1><p class='abPRemoveTitle'> PM.png

Screen Shot 2019-12-10 at 6.19.45 PM.png

Problem 34E:
Chapter: CH6
Problem:
34E
To determine whether drinking alcoholic beverages has an effect on the bacteria that cause ulcers, researchers developed
the following table of joint probabilities.
Number of Alcoholic Drinks per Day Ulcer No Ulcer
None
.01
22
One
.03
.19
Two
03
.32
More than two
.04
.16
a. What proportion of people have ulcers?
b. What is the probability that a teetotaler (no alcoholic beverages) develops an ulcer?
c. What is the probability that someone who has an ulcer does not drink alcohol?
d. What is the probability that someone who has an ulcer drinks alcohol?

Top Answer

a) Proportion of people who have ulcer = 0.11 b) The probability that a teetotaler(no... View the full answer

Sign up to view the full answer

Other Answers

a) 0.11 b) 0.0435 (round 4 decimal)... View the full answer

a) P(ulcers) = 0.11 b) P(ulcer | no alcoholic)... View the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question