A music shop is promoting a sale in which the purchaser of a compact disk can roll a die, then deduct a dollar from the retail price for each dot that shows on the rolled die. It is equally likely that the die will come up any integer from 1 through 6. The owner of the music shop pays $5.00 for each compact disk, then prices them at $9.00. During this special promotion, what will be the shop’s average profit per compact disk sold?

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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A music shop is promoting a sale in which the 
purchaser of a compact disk can roll a die, then deduct 
a dollar from the retail price for each dot that shows on 
the rolled die. It is equally likely that the die will come 
up any integer from 1 through 6. The owner of the music 
shop pays $5.00 for each compact disk, then prices them 
at $9.00. During this special promotion, what will be the 
shop’s average profit per compact disk sold?

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