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Chi Squared Goodness of Fit and the T-Test
This page continues and extends our understanding of hypothesis testing, the act of creating a hypothesis about what you believe about the association between variables, data sets or distributions and...
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Normal Distribution
The normal distribution is a fascinating, naturally occurring phenomenon that has very relevant applications to understanding the world around us. When a data set is normally distributed it has some key...
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Exponents and Logarithms
Exponents The exponents of a number tell us how many times the number has been multiplied. Understanding these well, and being able to apply the laws of exponents will help us when sketching graphs, using...
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Accuracy and Estimation
Accuracy and Estimation When numbers are reported in the news, or as statistical results, they are either displayed exactly, or they are rounded to a certain degree of accuracy. Understanding how and...
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Arithmetic Sequences
This page has a series of video lessons about arithmetic sequences. These can be shared with students using Student Access. These can used in class, either by teachers or students on their own, they...
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Linear Models
This page has a series of video lessons about Linear Models. These can be shared with students using Student Access. These can used in class, either by teachers or students on their own, they can be...
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Quadratic Models
Quadratic functions are in the form ax2 + bx + c, and have fascinated mathematicians for centuries. They have some fundamental properties that will explored in this unit. Probably the best known example...
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Key Features of Functions And Graphing
Now that we know something about the basics of functions, this section aims to help deepen your understanding of them and enable you to identify key features such as vertex points, intercepts with axes...
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Introducing Functions
Functions are extraordinary algebraic and visual tools which allow us to understand and analyse relationships. In this section you will learn exactly what a function is and how to find a function's inverse,...
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Exponential Models
The exponential function is set apart from other families of functions because of the fundamental impact of having the variable in the exponent. It stops being a multiplier and starts being more 'powerful'...