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5. Chi-squared distribution

#### Chi Squared on Excel Guide

Created for my IB Maths Studies group to help them with their IA. This is a guide on how to do Chi Squared on Excel.

#### Limitations of the chi-squared test

Power Point presentation, 9 slides, Explaining what are the limitations when performing the Chi squared test of independence, using examples to show how to overcome those limitations, based on IB Standard Level Mathematical Studies Syllabus. For a preview of the power point copy the following link on your browser: https://drive.google.com/file/d/0B8z00qLZV7Olb2YwcUlqb1g3UGs/view?usp=sharing

#### Chi squared test of independence

Power Point presentation, 29 slides, Explaining what is Chi squared test of independence, using examples to show how to perform the test, and show how to use GDC to calculate chi-squared, based on IB Standard Level Mathematical Studies Syllabus. For a preview of the power point copy the following link on your browser: https://drive.google.com/file/d/0B8z00qLZV7OlV1cxZFBGQjZXZG8/view?usp=sharing

#### Perform linear regression using matrices

This video explains how to use matrices to perform least squares linear regression. Site: http://mathispower4u.com Blog: http://mathispower4u.wordpress.com

#### Benford's Law Explanation (Sequel to Mysteries of Benford's Law)

More content like this is available at www.khanacademy.org

#### Autograph Team - Baby Weights - KS4 Video Tutorial

A video tutorial from the Autograph team. Ideal to be taught at KS4. Analyse the weights of babies to determine how unusual a given weight is. Clicking on the web-link below takes you to all the videos in this series.

#### A-level (Post 16) Statistics Revision Worksheets

These worksheets are useful revision aids that include mixed questions to different a-level statistic topics. Solution sheets are provided.