f(x, y) = { 0, elsewhere The following picture (not to scale) shows the "support" of this joint pdf: 2 y = 2x
f(x, y) = { 0, elsewhere The following picture (not to scale) shows the "support" of this joint pdf: 2 y = 2x
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
![Consider the following joint par of two random variables X and Y:
f(x,y) = {10,
The following picture (not to scale) shows the "support" of this joint pdf:
Dr
[₁
2
1
0≤x≤ 1,0 ≤ y ≤ 2x
elsewhere
y = 2x
6
Cppose an analyst observes a particular outcome (xo, Yo) drawn from the joint pdf f(x, y) above.
We are told the value of xo and asked to "guess" the value of the accompanying yo. True or false: knowing the
value of xo is useless for guessing the value of yo? Provide an intuitive explanation, using graphs if necessary.
Provide an intuitive counter-example to your answer (showing the support of the counter-example joint pdf).
] Show that A 1/2.
ntel Derive f(x) and compute E[X] and o.
...s] Derive f (y) and compute E[Y] and o.
.] Derive f (ylx) and compute E[YIX]. Based on your answer for E[YIX] do you think the two random](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcc93dd3a-e660-4464-bc8c-e382a2c34aae%2F86358669-a4e4-44e8-967e-725d5478b4f0%2F0wqpbv_processed.png&w=3840&q=75)
Transcribed Image Text:Consider the following joint par of two random variables X and Y:
f(x,y) = {10,
The following picture (not to scale) shows the "support" of this joint pdf:
Dr
[₁
2
1
0≤x≤ 1,0 ≤ y ≤ 2x
elsewhere
y = 2x
6
Cppose an analyst observes a particular outcome (xo, Yo) drawn from the joint pdf f(x, y) above.
We are told the value of xo and asked to "guess" the value of the accompanying yo. True or false: knowing the
value of xo is useless for guessing the value of yo? Provide an intuitive explanation, using graphs if necessary.
Provide an intuitive counter-example to your answer (showing the support of the counter-example joint pdf).
] Show that A 1/2.
ntel Derive f(x) and compute E[X] and o.
...s] Derive f (y) and compute E[Y] and o.
.] Derive f (ylx) and compute E[YIX]. Based on your answer for E[YIX] do you think the two random
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