Main content
Statistics and probability
Course: Statistics and probability > Unit 9
Lesson 1: Discrete random variables- Random variables
- Discrete and continuous random variables
- Constructing a probability distribution for random variable
- Constructing probability distributions
- Probability models example: frozen yogurt
- Probability models
- Valid discrete probability distribution examples
- Probability with discrete random variable example
- Probability with discrete random variables
- Mean (expected value) of a discrete random variable
- Expected value
- Mean (expected value) of a discrete random variable
- Expected value (basic)
- Variance and standard deviation of a discrete random variable
- Standard deviation of a discrete random variable
© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice
Mean (expected value) of a discrete random variable
AP.STATS: VAR‑5 (EU), VAR‑5.C (LO), VAR‑5.C.1 (EK), VAR‑5.C.2 (EK), VAR‑5.D (LO), VAR‑5.D.1 (EK) CCSS.Math: HSS.MD.A.2
You might need: Calculator
Problem
Stuck?
Stuck?