# Edexcel S2 Statistics

### Discrete random variables

Binomial Distribution

- Introduction
- Formula
- Cumulative Probability Tables
- Mean and variance

Poisson Distribution

### Continuous random variables

Probability Density Functions and Cumulative Distribution Functions

Continuous Uniform / Rectangular Distribution

### Statistical approximations

Poisson Approximation to the Binomial Distribution

Continuity Corrections

Normal Approximation to the Binomial Distribution

- The normal approximation to the binomial distribution (old video)
- The normal approximation to the binomial distribution (updated video)
- Exam Questions

Normal Approximation to the Poisson Distribution

### Estimation and sampling

### Hypothesis tests

### Exam Papers

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