Let X1 and X2 be two independent random variables having Gaussian (normal) distribution with means E[X1] = 30 and E[X2] = 20. respectively, and Var[X1] =9 and Var[X2] = 16. respectively. Then the probability that X1- X2 assume values smaller than 15 (approx to the second digit after the dot) is equal to: a) 0.84 (b) 0.16 (c) 0.68

Let X1 and X2 be two independent random variables having Gaussian (normal) distribution with means E[X1] = 30 and E[X2] = 20. respectively, and Var[X1] =9 and Var[X2] = 16. respectively. Then the probability that X1- X2 assume values smaller than 15 (approx to the second digit after the dot) is equal to: a) 0.84 (b) 0.16 (c) 0.68

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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