A chain of video stores sells three different brands of DVD players. Of its DVD player sales, 48% are brand 1 (the least expensive), 33% are brand 2, and 19% are brand 3. Each manufacturer offers a 1-year warranty on parts and labor. It is known that 27% of brand 1’s DVD players require warranty repair work, whereas the corresponding percentages for brands 2 and 3 are 22% and 13%, respectively. Assume that the purchaser selects one brand only. a. What is the probability that a randomly selected purchaser has bought a brand 1 DVD player that will need repair while under warranty? b. What is the probability that a randomly selected purchaser has a DVD player that will need repair while under warranty?
A chain of video stores sells three different brands of DVD players. Of its DVD player sales, 48% are brand 1 (the least expensive), 33% are brand 2, and 19% are brand 3. Each manufacturer offers a 1-year warranty on parts and labor. It is known that 27% of brand 1’s DVD players require warranty repair work, whereas the corresponding percentages for brands 2 and 3 are 22% and 13%, respectively. Assume that the purchaser selects one brand only. a. What is the probability that a randomly selected purchaser has bought a brand 1 DVD player that will need repair while under warranty? b. What is the probability that a randomly selected purchaser has a DVD player that will need repair while under warranty?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
(Use tree diagram) A chain of video stores sells three different brands of DVD players. Of its
DVD player sales, 48% are brand 1 (the least expensive), 33% are brand 2, and 19% are brand 3.
Each manufacturer offers a 1-year warranty on parts and labor. It is known that 27% of brand 1’s
DVD players require warranty repair work, whereas the corresponding percentages for brands 2
and 3 are 22% and 13%, respectively. Assume that the purchaser selects one brand only.
a. What is the
that will need repair while under warranty?
b. What is the probability that a randomly selected purchaser has a DVD player that will need
repair while under warranty?
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