a) Calculate P(1 < X < 2). (Round your answer to four decimal places.) 0.5819 x b) Calculate P(X>1.5). (Round your answer to four decimal places.) 0.7156 x c) What is the 90th percentile of the distribution? (Round your answer to three decimal places.) 2.543 x days
a) Calculate P(1 < X < 2). (Round your answer to four decimal places.) 0.5819 x b) Calculate P(X>1.5). (Round your answer to four decimal places.) 0.7156 x c) What is the 90th percentile of the distribution? (Round your answer to three decimal places.) 2.543 x days
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![Once an individual has been infected with a certain disease, let X represent the time (days) that elapses before the individual becomes infectious. An article proposes a Weibull distribution with a = 2.7, ß = 1.7, and y = 0.5. [Hint: The two-parameter Weibull
distribution can be generalized by introducing a third parameter y, called a threshold or location parameter: replace x in the equation below,
= {====
0
_xa - le-(x/B) *
f(x; α, B) = Ba²
ΧΣ Ο
x < 0
by x - y and x ≥ 0 by x ≥ y.]
(a) Calculate P(1 < X < 2). (Round your answer to four decimal places.)
0.5819
X
(b) Calculate P(X> 1.5). (Round your answer to four decimal places.)
0.7156
X
(c) What is the 90th percentile of the distribution? (Round your answer to three decimal places.)
2.543
x days
1.834
standard deviation 0.533
(d) What are the mean and standard deviation of X? (Round your answers to three decimal places.)
mean
X days
X days](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F69114cc4-9b87-45c3-b69a-02f5eb08739b%2F9ab128ca-fc01-4642-98b9-8406e9649e53%2Fgoka1sn_processed.png&w=3840&q=75)
Transcribed Image Text:Once an individual has been infected with a certain disease, let X represent the time (days) that elapses before the individual becomes infectious. An article proposes a Weibull distribution with a = 2.7, ß = 1.7, and y = 0.5. [Hint: The two-parameter Weibull
distribution can be generalized by introducing a third parameter y, called a threshold or location parameter: replace x in the equation below,
= {====
0
_xa - le-(x/B) *
f(x; α, B) = Ba²
ΧΣ Ο
x < 0
by x - y and x ≥ 0 by x ≥ y.]
(a) Calculate P(1 < X < 2). (Round your answer to four decimal places.)
0.5819
X
(b) Calculate P(X> 1.5). (Round your answer to four decimal places.)
0.7156
X
(c) What is the 90th percentile of the distribution? (Round your answer to three decimal places.)
2.543
x days
1.834
standard deviation 0.533
(d) What are the mean and standard deviation of X? (Round your answers to three decimal places.)
mean
X days
X days
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman