Suppose that we have three cards identical in form except that both sides of the first card are colored red, both sides of the second card are colored black, and one side of the third card is colored red and the other side black. The three cards are mixed up in a bag, and one card is randomly selected and put down on the table. What is the probability that the upper side of the selected card is colored red?

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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Suppose that we have three cards identical in form except that both sides of the
first card are colored red, both sides of the second card are colored black, and one side
of the third card is colored red and the other side black. The three cards are mixed up
in a bag, and one card is randomly selected and put down on the table. What is the
probability that the upper side of the selected card is colored red? 

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