A drawer contains n white and n black socks. Each white sock has unique design, and each black sock has a unique design. Two sock are selected at random from the drawer. Every way of selecting t two socks is equally likely and the order in which the socks are selected does not matter. a. How many ways are there to select the two socks? (Reduce yo answer to the simplest algebraic expression.) b. How many ways of selecting the socks result in two socks of the same color being chosen? (Reduce your answer to the simplest algebraic expression.) c. What is the probability of selecting two socks of the same color? (Reduce your answer to the simplest algebraic expression.)
A drawer contains n white and n black socks. Each white sock has unique design, and each black sock has a unique design. Two sock are selected at random from the drawer. Every way of selecting t two socks is equally likely and the order in which the socks are selected does not matter. a. How many ways are there to select the two socks? (Reduce yo answer to the simplest algebraic expression.) b. How many ways of selecting the socks result in two socks of the same color being chosen? (Reduce your answer to the simplest algebraic expression.) c. What is the probability of selecting two socks of the same color? (Reduce your answer to the simplest algebraic expression.)
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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