A study was conducted to determine if the results of a test indicated whether a disease was present or not in 200 trials. The results are listed in the table below.  Presence of Disease Test Result   Total + Result −  Result Present 84 3 87 Not Present 7 106 113 Total 91 109 200   What is the probability that a randomly selected subject received positive results given that the disease was present? Note: - Select the correct answer below as a percent rounded to 3 significant digits.  - Show your calculations on your scrap paper for full marks.    a. 42%   b. 96.6%   c. None of the above.   d. 96.5%

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...
icon
Related questions
Question

A study was conducted to determine if the results of a test indicated whether a disease was present or not in 200 trials. The results are listed in the table below. 

Presence of Disease

Test Result

 

Total

+ Result

−  Result

Present

84

3

87

Not Present

7

106

113

Total

91

109

200

 

What is the probability that a randomly selected subject received positive results given that the disease was present?

Note:

- Select the correct answer below as a percent rounded to 3 significant digits. 

- Show your calculations on your scrap paper for full marks. 

  a.

42%

  b.

96.6%

  c.

None of the above.

  d.

96.5%

Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON