A red die and a blue die are rolled. You win or lose money depending on the sum of the values of the two dice. If the sum is 3 or 5, you win $6. If the sum is 8 or 9, you win $1. If the sum is any other value (2, 4, 6, 7, 10, 11, or 12), you lose $2. Let X be a random variable that corresponds to your net winnings in dollars. What is the expected value of X? E[X] = Ex: 1.23

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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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A red die and a blue die are rolled. You win or lose money depending on the sum of the values of the two dice.
If the sum is 3 or 5, you win $6.
If the sum is 8 or 9, you win $1.
If the sum is any other value (2, 4, 6, 7, 10, 11, or 12), you lose $2.
Let X be a random variable that corresponds to your net winnings in dollars. What is the expected value of X?
E[X] = Ex: 1.23
Transcribed Image Text:A red die and a blue die are rolled. You win or lose money depending on the sum of the values of the two dice. If the sum is 3 or 5, you win $6. If the sum is 8 or 9, you win $1. If the sum is any other value (2, 4, 6, 7, 10, 11, or 12), you lose $2. Let X be a random variable that corresponds to your net winnings in dollars. What is the expected value of X? E[X] = Ex: 1.23
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