Topic module: S2 AQA

Chi squared test for contingency tables

t distribution

Type I and II errors

Test for a sample mean

Exam Questions – Continuous uniform / rectangular distribution

Exam Questions – Probability density functions and cumulative distribution functions

Exam Questions – Poisson distribution

Expected mean E(X), the variance Var(X), cumulative distribution function F(X)

Defining the pdf, calculating probabilities and quartiles

Continuous uniform / rectangular distribution

E(X) and Var(X)

Finding the mode from a p.d.f.

Finding the median quartiles and percentiles

The cumulative distribution function, (c.d.f)

Calculating probability from a p.d.f.

Finding the constant k in a p.d.f

What is a probability density function (p.d.f.)?

Finding an observed value x

Changing the mean

Poisson distribution