Homework Help is Here – Start Your Trial Now!
Math
Probability
6. A department store sells refrigerators from four manufacturers: 40% from Company A, 25% from Company B, 15% from Company C, and the rest come from Company D. Suppose 10% of the refrigerators from Company A, 20% from Company B, 5% from Company C, and 25% from company D last more than 15 years. a) What is the probability that a refrigerator purchased from this department store lasts more than 15 years? Show all work and express your answer as a decimal. P(D)=0.2 P(Last than more than 15 years)

6. A department store sells refrigerators from four manufacturers: 40% from Company A, 25% from Company B, 15% from Company C, and the rest come from Company D. Suppose 10% of the refrigerators from Company A, 20% from Company B, 5% from Company C, and 25% from company D last more than 15 years. a) What is the probability that a refrigerator purchased from this department store lasts more than 15 years? Show all work and express your answer as a decimal. P(D)=0.2 P(Last than more than 15 years)

A First Course in Probability (10th Edition)
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...
See similar textbooks
icon
Related questions
Question

math needed

6. A department store sells refrigerators from four manufacturers: 40% from Company A, 25% from Company B, 15% from Company C, and the rest come from Company D. Suppose 10% of the refrigerators from Company A, 20% from Company B, 5% from Company C, and 25% from company D last more than 15 years. a) What is the probability that a refrigerator purchased from this department store lasts more than 15 years? Show all work and express your answer as a decimal. P(D)=0.2 P(Last than more than 15 years) = 0.1475 b) If a refrigerator purchased from this department store lasts more than 15 years, what is the probability that it was made by Company D? Show all work and express your answer as a decimal. P(Made by company D) = (0.2*0.25)/0.1475 = 0.339
Transcribed Image Text:6. A department store sells refrigerators from four manufacturers: 40% from Company A, 25% from Company B, 15% from Company C, and the rest come from Company D. Suppose 10% of the refrigerators from Company A, 20% from Company B, 5% from Company C, and 25% from company D last more than 15 years. a) What is the probability that a refrigerator purchased from this department store lasts more than 15 years? Show all work and express your answer as a decimal. P(D)=0.2 P(Last than more than 15 years) = 0.1475 b) If a refrigerator purchased from this department store lasts more than 15 years, what is the probability that it was made by Company D? Show all work and express your answer as a decimal. P(Made by company D) = (0.2*0.25)/0.1475 = 0.339
Expert Solution
steps

Step by step

Solved in 4 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON
SEE MORE TEXTBOOKS