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Basic Question 2 of 7
In a certain electric motor factory, production lines 1, 2, and 3 produce 10%, 40%, and 50%, respectively, of the total output. Of their respective outputs, 5%, 3%, and 1% are defective. An electric motor is selected at random. What is the probability that the motor is defective?
B. 0.090
C. 0.978
A. 0.022
B. 0.090
C. 0.978
User Contributed Comments 3
| User | Comment |
|---|---|
| Amrokken | Straighforward 1 |
| ANBobby | Does that add up correctly? |
| ANBobby | oops nevermind |
Thanks again for your wonderful site ... it definitely made the difference.
Craig Baugh
Learning Outcome Statements
formulate an investment problem as a probability tree and explain the use of conditional expectations in investment application
CFA® 2025 Level I Curriculum, Volume 1, Module 4.