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This is the first video in a new series dealing with the work on Investigating associations between two variables. This is part of the Further Maths Units 3 and 4 course. This video looks at the difference between explanatory variables and response variables and which can be predicted from which. It's really important to ensure you get these two the correct way around as the rest of the course will depend on the information.
This is the second video in this series for the Further Maths Units 3 and 4 course. Look at the main topic of Investigating Associations I dig deeper into how to look at proving associations between two categorical variables. The videos will build into a deeper look at scatter plots and how to prove there are associations between two numerical variables, but let's take it one step at a time. At the end of each video there will be solutions to past paper VCAA questions.
This is the third video in this series for the Further Maths Units 3 and 4 course. Looking at the main topic of Investigating Associations I dig deeper into how to look at proving associations between a categorical and a numerical variable. The videos will build into a deeper look at scatter plots and how to prove there are associations between two numerical variables, but let's take it one step at a time. At the end of each video there will be solutions to past paper VCAA questions.
This is the next video in the series which relates to the Further Maths Units 3 and 4 course and deals with how to show relationships or associations between two numerical variables. Basically, we're starting to look at Scatter Plots. This video looks at how to draw them by hand and using the CAS calculator. It's an introduction to a much larger topic which will take the rest of this module to whole new heights.
This video is part of the Further Maths Units 3 and 4 course and shows how to interpret a scatter plot. Building on the knowledge from the previous videos we now start to look at how to describe a scatter plot and it's association in terms of strength, direction and form. We also learn about outliers and how to deal with them. This video shows how to scaffold responses to exam questions and has one VCAA worked solution at the end of the video.
This video forms on video as part of the core module on data analysis. I take a look at how to use pencil and paper methods alongside the CAS to find the correlation coefficient given a set of data. There is a formula I use to find the value of 'r'. This type of question comes up in exams all the time and I do all I can to make the content as easy to understand as I can.
This is another video in the series for Further Maths Units 3 and 4 which shows you what the coefficient of determination is and how to interpret it. I show how it relates to Pearsons Correlation Coefficient and how you can convert this very important value into the Coefficient of Determination. I spend some time using quality examples before doing some past VCAA paper questions. All delivered in a clear and easy to understand way!
This video is part of the Further Maths Units 3 and 4 course and looks at the data analysis component. One of the most interesting parts of this course is about correlation and causation. Does a correlation between two variables mean that one always causes the other? Well, it appears not! This video looks at the three ways two variables can be related. Coincidence, confounding variables and common response. Examples are given and some VCAA questions are answered at the end of the video.
This video is the last in the series which looks at Describing variables for the Units 3 and 4 Further Maths course. The video is a final discussion (and it's quick!) of which graph to use for which sets of variables. Just copying the table into yours summary book will see you ace any question which VCAA might throw at you. I use some past VCAA questions to demonstrate how easy this concept can be.
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These are the videos which are available in each chapter. You will notice that some are free and some are for subscribers only. Making and hosting these videos costs a little bit of money. To help pay for the hosting fees I have no choice but to hide some of the videos and make them for subscribers only.