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Page 108, 2.2.3. Let X₁ and X₂ have the joint pdf h(x₁, x2) = 2exp[-x1-x2], 0 < x1 < x2 <0o, h(x₁, x2) = zero, elsewhere. Find the joint pdf of Y₁ = X₁ and Y2 =X₁+X2.

Page 108, 2.2.3. Let X₁ and X₂ have the joint pdf h(x₁, x2) = 2exp[-x1-x2], 0 < x1 < x2 <0o, h(x₁, x2) = zero, elsewhere. Find the joint pdf of Y₁ = X₁ and Y2 =X₁+X2.

A First Course in Probability (10th Edition)
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...
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Please only answer pg 108 2.2.3
**Problem 3:** Let \( X \) and \( Y \) have the joint pdf \( f(x, y) = 6(1 - x - y), \) \( x + y < 1, \) \( 0 < x, \) \( 0 < y, \) zero elsewhere. Compute \(\text{Var}(Y \mid X = x).\) --- **Page 108, 2.2.3:** Let \( X_1 \) and \( X_2 \) have the joint pdf \( h(x_1, x_2) = 2\exp[-x_1x_2], \) \( 0 < x_1 < x_2 < \infty, \) \( h(x_1, x_2) = \) zero elsewhere. Find the joint pdf of \( Y_1 = X_1 \) and \( Y_2 = X_1 + X_2. \) --- **Page 116, 2.3.6:** Let the joint pdf of \( X \) and \( Y \) be given by \( f(x, y) = \frac{2}{(1 + x + y)^3}, \) \( 0 < x < \infty, \) \( 0 < y < \infty, \) \( f(x, y) = 0 \) elsewhere. *(a)* Compute the marginal pdf of \( Y \) and the conditional pdf of \( X \) given \( Y = y. \)
Transcribed Image Text:**Problem 3:** Let \( X \) and \( Y \) have the joint pdf \( f(x, y) = 6(1 - x - y), \) \( x + y < 1, \) \( 0 < x, \) \( 0 < y, \) zero elsewhere. Compute \(\text{Var}(Y \mid X = x).\) --- **Page 108, 2.2.3:** Let \( X_1 \) and \( X_2 \) have the joint pdf \( h(x_1, x_2) = 2\exp[-x_1x_2], \) \( 0 < x_1 < x_2 < \infty, \) \( h(x_1, x_2) = \) zero elsewhere. Find the joint pdf of \( Y_1 = X_1 \) and \( Y_2 = X_1 + X_2. \) --- **Page 116, 2.3.6:** Let the joint pdf of \( X \) and \( Y \) be given by \( f(x, y) = \frac{2}{(1 + x + y)^3}, \) \( 0 < x < \infty, \) \( 0 < y < \infty, \) \( f(x, y) = 0 \) elsewhere. *(a)* Compute the marginal pdf of \( Y \) and the conditional pdf of \( X \) given \( Y = y. \)
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