Interval in Alive at Start years of Interval 0-4 5-9 10-14 15-19 20-24 25 17 14 10 4 Deaths During Interval 2 1 2 4 1 Withdrawn Alive During Interval 6 2 2 2 2 Probability of Dying in Interval (Q-19) Probability of Surviving Interval Cumulative Probability of Surviving to End of Interval (Q-21) In this example, we know when study subjects decide to withdraw from the study. We know that they are alive up to the point of this withdrawal. To account for this in the survival probability estimates, we should subtract half of the withdrawals from the number of living people at the beginning of each duration from the number of people at risk.

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. What is the probability of dying in the 5-9 year interval?

 

B. In which interval does the best estimate of median survival time fall?

 

C. What is the cumulative probability of surviving to the end of the 24-year period?    

Interval in Alive at Start
years
of Interval
0-4
5-9
10-14
15-19
20-24
25
17
14
10
4
Deaths
During
Interval
2
1
2
4
1
Withdrawn Alive
During Interval
6
2
2
2
2
Probability of
Dying in Interval
(Q-19)
Probability of
Surviving
Interval
Cumulative
Probability of
Surviving to End of
Interval
(Q-21)
In this example, we know when study subjects decide to withdraw from the study. We know that
they are alive up to the point of this withdrawal. To account for this in the survival probability
estimates, we should subtract half of the withdrawals from the number of living people at the
beginning of each duration from the number of people at risk.
Transcribed Image Text:Interval in Alive at Start years of Interval 0-4 5-9 10-14 15-19 20-24 25 17 14 10 4 Deaths During Interval 2 1 2 4 1 Withdrawn Alive During Interval 6 2 2 2 2 Probability of Dying in Interval (Q-19) Probability of Surviving Interval Cumulative Probability of Surviving to End of Interval (Q-21) In this example, we know when study subjects decide to withdraw from the study. We know that they are alive up to the point of this withdrawal. To account for this in the survival probability estimates, we should subtract half of the withdrawals from the number of living people at the beginning of each duration from the number of people at risk.
Expert Solution
steps

Step by step

Solved in 2 steps with 4 images

Blurred answer
Similar 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