- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 9. Parametric and Non-Parametric Tests of Independence
- Subject 2. Test of Independence Using Contingency Table Data
CFA Practice Question
Suppose a study of speeding violations and drivers who use cell phones produced the following fictional data:
The probability that a person had no violation last year GIVEN person was not a car phone user is: A. 405/450
B. 405/685
C. 405/755
Correct Answer: A
The sample space is reduced to the number of persons who were not car phone users.
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