Civil Engineering Department: Engineering Statistics (ECIV 2005) Engr. Yasser M. Almadhoun Page 1 Chapter 2: Random Variables Section 2.1: Discrete Random Variables Problem (01): (a) Verify that the following functions are probability mass functions. (b) Determine the requested probabilities: -2 -1 0 1 2 ( = ) 1/8 2/8 2/8 2/8 1/8 (1) P(X ≤ 2) (2) P(X > -2) (3) P(-1 ≤ X ≤ 1) (4) P(X ≤ -1 or X = 2) (Problem 1.1.1 in textbook) Solution: ∑ ( = ) = 1 8 + 2 8 + 2 8 + 2 8 + 1 8 = 1.00 ≤ ≤ ≤ ≤
7
Embed
Chapter 2: Random Variables - site.iugaza.edu.pssite.iugaza.edu.ps/ymadhoun/files/2016/09/Lecture-07.pdf · Chapter 2: Random Variables Section 2.1: Discrete Random Variables Problem
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.