Assessment
Exploration Ideas Free
Being able to explore some mathematics of your own choice and take ownership of your learning should be an exciting opportunity. However, students often find choosing a topic for their exploration rather...
Assessment
Exploration Examples Free
It is a good idea to familiarise yourself with as many 'good' past explorations as possible. This will allow you to see what makes a good mathematics internal assessment, understand how an exploration...
Assessment
How to Score Well on Your Mathematical Exploration Free
This page is designed to give you an overview of the five assessment criteria used to mark your mathematical exploration and, more importantly, to help you understand what you should do to achieve the...
Review/revision
Normal Distribution
The normal distribution is an extremely useful statistical distribution. Data for heights and weights of adults and objects produced by machines, for example, tend to follow the normal (bell-shaped) distribution....
Review/revision
Continuous Random Variables HL
A random variable is continuous if it can take any value in an interval. Calculations with continuous random variables often involve quantities such as heights or times; in other words, quantities that...
Review/revision
Binomial Distribution
The binomial distribution is an example of a discrete random variable. It has two parameters: n, the number of trials, and p, the probability of success on one trial. We write this as X\sim B(n,p). For...
Review/revision
Discrete Random Variables
On this page we will explore the concept of discrete random variables and their probability distributions. We will look at how we can display probability distributions in tables or as functions. The questions...
Review/revision
Conditional Probability
You may well have tried the Monty Hall problem, a question based on the game show 'Let's Make a Deal'. In the game show, extra information is given about the whereabouts of a prize. If you use this extra...
Review/revision
Probability Calculations
This page is designed to help you with the basics of probability. You will learn how to list outcomes, use Venn diagrams and use probability trees. You will also find out about mutually exclusive events...
Review/revision
Linear Correlation
This page is all about looking for correlations in bivariate data, to see whether there is a relationship between the x- and y-variables. You will learn how to calculate r, Pearson’s product-moment correlation...