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- | symbol (see conditional probabilities)
- ∩ intersection
- finding, Trees also help you calculate conditional probabilities
- P(A ∩ B) versus P(A | B), Trees also help you calculate conditional probabilities
- P(Black ∩ Even), We can find P(Black l Even) using the probabilities we already have

- 1/p, expectation, Expectation is 1/p
- λ
- λ distribution (see Poisson distribution)
- μ (mu), Back to the mean, Point estimators can approximate population parameters
- confidence intervals, Start by finding Z

- v (nu), Two main uses of the χ2 distribution
- degrees of freedom, v represents degrees of freedom

- Σ (sigma), Dealing with unknowns
- mean, Dealing with unknowns

- σ (sigma), ...but standard deviation is a more intuitive measure
- χ2 (chi square), Hypothesis testing with χ2
- χ2 (chi square) distribution, The χ2 Distribution: There’s Something Going On...
- cheat sheet, You’ve solved the slot machine mystery
- contingency table, You can find the expected frequencies using ...

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