- 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 is a car phone user OR a person had no violation in the last year is:
A. (305 + 685)/(755x2)
B. (450+70)/755
C. 710/755
Explanation: 305/755 + 685/755 - 280/755 = 710/755
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