2.5.5Suppose that two continuous random variables X and Yhave a joint probability density function f(x, y) = A(ex+y + 2x-y) for 1 ≤ x ≤ 2 and 0 ≤ y ≤ 3, and f(x, y) = 0 elsewhere. S (a) What is the value of A? (b) What is P(1.5 = X = 2, 1 = Y = 2)? (c) Construct the marginal probability density functions fx(x) and fy(y). (d) Are the random variables X and Yindependent? (e) If Y= 0, what is the conditional probability density function of X?
2.5.5Suppose that two continuous random variables X and Yhave a joint probability density function f(x, y) = A(ex+y + 2x-y) for 1 ≤ x ≤ 2 and 0 ≤ y ≤ 3, and f(x, y) = 0 elsewhere. S (a) What is the value of A? (b) What is P(1.5 = X = 2, 1 = Y = 2)? (c) Construct the marginal probability density functions fx(x) and fy(y). (d) Are the random variables X and Yindependent? (e) If Y= 0, what is the conditional probability density function of X?
A First Course in Probability (10th Edition)
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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...
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
Transcribed Image Text:2.5.5Suppose that two continuous random variables X and Y have a joint
probability density function
f(x, y) = A(ex+y + 2x-y)
for 1 ≤ x ≤ 2 and 0 ≤ y ≤ 3, and f(x, y) = 0 elsewhere.
(a) What is the value of A?
(b) What is P(1.5 = X = 2, 1 = Y = 2)?
(c) Construct the marginal probability density functions fx(x) and fy(y).
(d) Are the random variables X and Yindependent?
(e) If Y= 0, what is the conditional probability density function of X?
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