Discrete Random Variables
Defining variables that take on distinct values and calculating their probability distributions.
About This Topic
Defining variables that take on distinct values and calculating their probability distributions.
Key Questions
- Differentiate between a simple average and the expected value of a random variable.
- Explain how the variance of a distribution measures the 'risk' or 'uncertainty' of an outcome.
- Justify why the sum of all probabilities in a discrete distribution must always equal exactly one.
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