- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 4. Common Probability Distributions
- Subject 1. Introduction and Discrete Random Variables
CFA Practice Question
I select two cards from a deck of 52 cards and observe the color of each (26 cards in the deck are red and 26 are black). Which of the following is an appropriate sample space S for the possible outcomes?
B. S = {(red, red), (red, black), (black, red), (black, black)}, where, for example, (red, red) stands for the event "the first card is red and the second card is red."
C. S = {0, 1, 2}
A. S = {red, black}
B. S = {(red, red), (red, black), (black, red), (black, black)}, where, for example, (red, red) stands for the event "the first card is red and the second card is red."
C. S = {0, 1, 2}
Correct Answer: B
Each time I select two cards, each such selection results in either (red, red), (red, black), (black, red) or (black, black).
User Contributed Comments 3
| User | Comment |
|---|---|
| rethan | Does sample space mean possible outcomes? |
| magicchip | @rethan: yes, sample space is simply all possible combinations. |
| wrrnwng | Reason that A isn't correct is that the sample size is too small (thus not appropriate)? |