- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 4. Common Probability Distributions
- Subject 1. Introduction and Discrete Random Variables

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**CFA Practice Question**

What is the principal distinction between a discrete and continuous random variable? Give an example of each.

Correct Answer: A discrete random variable can assume a countable number of values, while a continuous random variable can assume an infinite number of values.

Examples of a discrete random variable:

- the number of heads obtained when a coin is flipped three times.
- the number that turns up when a die is rolled.
- the number of people waiting in line at a movie theater

- the height of a person.
- the amount of rainfall.
- time required to run a mile.

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**User Contributed Comments**
4

User |
Comment |
---|---|

cleopatraliao |
no.of quarterbacks+the age of quarterbacks... |

lordcomas |
The number of states in a country; the amount of money that there is in a bank |

DustinErik |
lol cleopatraliao |

ashish100 |
lol |