Why should I choose AnalystNotes?

Simply put: AnalystNotes offers the best value and the best product available to help you pass your exams.

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?

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
You need to log in first to add your comment.
Your review questions and global ranking system were so helpful.
Lina

Lina

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.