Solution Found!
Suppose that a patient is selected randomly from those
Chapter 2, Problem 118E(choose chapter or problem)
Suppose that a patient is selected randomly from those described in Exercise 2-57. Let A denote the event that the patient is treated with ribavirin plus interferon alfa, and let 𝐵 denote the event that the response is complete. Determine the following probabilities:
(a) P(B|A)
(b) P(A|B)
(c) \(P(A | B^\prime)\)
(d) \(P(A^\prime | B)\)
Questions & Answers
QUESTION:
Suppose that a patient is selected randomly from those described in Exercise 2-57. Let A denote the event that the patient is treated with ribavirin plus interferon alfa, and let 𝐵 denote the event that the response is complete. Determine the following probabilities:
(a) P(B|A)
(b) P(A|B)
(c) \(P(A | B^\prime)\)
(d) \(P(A^\prime | B)\)
ANSWER:Solution:
Step 1 of 5:
The total patients in each group and the number that showed a complete response after 24 weeks of treatment.
Complete response |
Total |
|
Ribavirin plus interferon alfa |
16 |
21 |
Interferon alfa |
6 |
19 |
Untreated controls |
0 |
20 |
Total |
22 |
60 |
A = patient treated with Ribavirin plus interferon alfa
B = complete response