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A sample preparation for a chemical measurement is
Chapter 2, Problem 200SE(choose chapter or problem)
Problem 200SE
A sample preparation for a chemical measurement is completed correctly by 25% of the lab technicians, completed with a minor error by 70%, and completed with a major error by 5%.
(a) If a technician is selected randomly to complete the preparation, what is the probability that it is completed without error?
(b) What is the probability that it is completed with either a minor or a major error?
Questions & Answers
QUESTION:
Problem 200SE
A sample preparation for a chemical measurement is completed correctly by 25% of the lab technicians, completed with a minor error by 70%, and completed with a major error by 5%.
(a) If a technician is selected randomly to complete the preparation, what is the probability that it is completed without error?
(b) What is the probability that it is completed with either a minor or a major error?
ANSWER:
Solution:
Step 1 of 2:
The sample preparation for a chemical measurement is completed correctly by 25% of the lab technicians, completed with a minor error by 70%, and completed with a major error by 5%.
- If a technician is selected randomly to complete the preparation, we have to find the probability that it is completed without error.
- We have to find the probability that it is completed with either a minor or a major error.