Let X represent the lifetime of a component, in weeks. Let Y represent the lifetime of the component in days, so Y = 7X. Suppose X ~ Exp(1). Let Fy be the cumulative distribution function of Y and let Fy be the cumulative distribution function of X. Show that Fy(y) = 1 e¯e-Ày/7. [Hint: F,(y) = P(Y < y) = P(7X

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
Let X represent the lifetime of a component, in weeks. Let Y represent the lifetime of the
component in days, so Y = 7X. Suppose X ~ Exp(1).
Let Fy be the cumulative distribution function of Y and let Fy be the cumulative
distribution function of X. Show that Fy(y) = 1 e¯e-Ày/7. [Hint: F,(y) = P(Y < y) = P(7X
<y) = P(X < y/7).]
b.
a.
Show that Y - Exp(/7). [Hint: Find the probability density function of Y by
differentiating FyV).]
Transcribed Image Text:Let X represent the lifetime of a component, in weeks. Let Y represent the lifetime of the component in days, so Y = 7X. Suppose X ~ Exp(1). Let Fy be the cumulative distribution function of Y and let Fy be the cumulative distribution function of X. Show that Fy(y) = 1 e¯e-Ày/7. [Hint: F,(y) = P(Y < y) = P(7X <y) = P(X < y/7).] b. a. Show that Y - Exp(/7). [Hint: Find the probability density function of Y by differentiating FyV).]
Expert Solution
Step 1

Statistics homework question answer, step 1, image 1

steps

Step by step

Solved in 2 steps with 3 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman