6.15. The random vector (X, Y) is said to be uniformly distributed over a region R in the plane if, for some constant c, its joint density is (c if(x, y) E R otherwise f(x, y) = a. Show that 1/c = area of region R. Suppose that (X, Y) is uniformly distributed over the square centered at (0, 0) and with sides of length 2. b. Show that X and Y are independent, with each being distributed uniformly over (-1,1). c. What is the probability that (X, Y) lies in the circle of radius 1 centered at the origin? That is, find P{X² + y² ≤ 1}.
6.15. The random vector (X, Y) is said to be uniformly distributed over a region R in the plane if, for some constant c, its joint density is (c if(x, y) E R otherwise f(x, y) = a. Show that 1/c = area of region R. Suppose that (X, Y) is uniformly distributed over the square centered at (0, 0) and with sides of length 2. b. Show that X and Y are independent, with each being distributed uniformly over (-1,1). c. What is the probability that (X, Y) lies in the circle of radius 1 centered at the origin? That is, find P{X² + y² ≤ 1}.
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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