Bernoulli random variables and their mean and standard deviation

What this note covers

1. Define the event before coding zero and one
2. The probability table and simple events
3. Deriving the mean of a Bernoulli variable
4. Deriving variance and standard deviation
5. How the parameter controls centre and spread
6. From one indicator to a repeated-trial model
7. Literal worked extension 1
8. Literal worked extension 2

8 sections · 10 key terms & formulas · 6 common mistakes