Main content

### Course: High school statistics > Unit 7

Lesson 4: Expected value- Mean (expected value) of a discrete random variable
- Mean (expected value) of a discrete random variable
- Interpreting expected value
- Interpret expected value
- Expected payoff example: lottery ticket
- Expected payoff example: protection plan
- Find expected payoffs

© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice

# Mean (expected value) of a discrete random variable

You might need: Calculator