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A batch of 20 injection-molded parts contains 5 parts that have suffered excessive shrinkage. If two parts are selected at random, and without replacement, what is the probability that the second part selected is one with excessive shrinkage? Let A and B denote the event that the first and second part selected has excessive shrinkage, respectively. (Show complete solution in your answer sheet) a. 0.2000 O b.0.2500 O c. 0.2237 d. None among the choices

A batch of 20 injection-molded parts contains 5 parts that have suffered excessive shrinkage. If two parts are selected at random, and without replacement, what is the probability that the second part selected is one with excessive shrinkage? Let A and B denote the event that the first and second part selected has excessive shrinkage, respectively. (Show complete solution in your answer sheet) a. 0.2000 O b.0.2500 O c. 0.2237 d. None among the choices

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...
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A batch of 20 injection-molded parts contains 5 parts that have suffered excessive shrinkage. If two parts are selected at random, and without replacement, what is the probability that the second part selected is one with excessive shrinkage? Let A and B denote the event that the first and second part selected has excessive shrinkage, respectively. (Show complete solution in your answer sheet) a. 0.2000 O b. 0.2500 O c. 0.2237 d. None among the choices
Transcribed Image Text:A batch of 20 injection-molded parts contains 5 parts that have suffered excessive shrinkage. If two parts are selected at random, and without replacement, what is the probability that the second part selected is one with excessive shrinkage? Let A and B denote the event that the first and second part selected has excessive shrinkage, respectively. (Show complete solution in your answer sheet) a. 0.2000 O b. 0.2500 O c. 0.2237 d. None among the choices
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