Soru 2 A chain of video stores sells 3 different brands of video recorders(VCRS). 60% of its sales are brand 1 VCR's, 10% are brand 2 and 30% are brand 3. Each manufacturer offers a one year warranty on parts and labor. It is known that 35% of brand 1 VCR's require warranty repair work, whereas the corresponding percentages for brands 2 and 3 are 20% and 10% respectively. Let A,, Az and A3 denote brands I, Il and III respectively and B denotes a video recorder that needs a warranty repair work.What is the probability that a randomly selected purchaser has a VCR that will need repair while under warranty? O a. 0.26 O b. 0.03 O c. 0.02 O d. 0.21 O e. 0.81

Soru 2 A chain of video stores sells 3 different brands of video recorders(VCRS). 60% of its sales are brand 1 VCR's, 10% are brand 2 and 30% are brand 3. Each manufacturer offers a one year warranty on parts and labor. It is known that 35% of brand 1 VCR's require warranty repair work, whereas the corresponding percentages for brands 2 and 3 are 20% and 10% respectively. Let A,, Az and A3 denote brands I, Il and III respectively and B denotes a video recorder that needs a warranty repair work.What is the probability that a randomly selected purchaser has a VCR that will need repair while under warranty? O a. 0.26 O b. 0.03 O c. 0.02 O d. 0.21 O e. 0.81

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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Transcribed Image Text:Soru 2 A chain of video stores sells 3 different brands of video recorders(VCRS). 60% of its sales are brand 1 VCR's, 10% are brand 2 and 30% are brand 3. Each manufacturer offers a one year warranty on parts and labor.. It is known that 35% of brand 1 VCR's require warranty repair work, whereas the corresponding percentages for brands 2 and 3 are 20% and 10% respectively. Let A,, Az and Az denote brands I, Il and Ill respectively and B denotes a video recorder that needs a warranty repair work.What is the probability that a randomly selected purchaser has a VCR that will need repair while under warranty? O a. 0.26 Ob. 0.03 Oc. 0.02 O d. 0.21 O e. 0.81

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