- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 3. Probability Concepts
- Subject 1. Introduction
CFA Practice Question
The ratio of males to females at OWJC is 3:5. P(female) = ______ (to nearest 0.1%)
B. 62.5%
C. 133.3%
A. 60%
B. 62.5%
C. 133.3%
Correct Answer: B
If the ratio of males to females is 3:5, then for every 8 students, 3 are male and 5 are female. Now, P(female) is ratio of success (female) to total. Thus, P(female) = 5:8 = 5/8 = 0.625 = 62.5%.
User Contributed Comments 1
| User | Comment |
|---|---|
| dbedford | P(f) = f:m = 5:3 So P(f) = f/f+m = 5/8 |