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Fruit Orchard Example

Hopefully this video’s example will help to reinforce where our formulas come from. Without using a formula, Adrian can calculate the desired probability through common sense. The intuition displayed in …

Assigning and Interpreting Probabilities

We should now have a broad understanding of the different ways we can assign probabilities to events as well as what those probabilities mean. You’ll likely most often be working …

Unions, Intersections and Complements

In the last activity we discussed how we assign probabilities to simple events. In this video we look at how we can take these simple events and work out probabilities …

The Role of Ethics Part 2

Building on the last video, Adrian here continues to highlight the importance of ethics in analytics, especially with relation to graphical techniques. Throughout this course we’ve already talked about what …

Introduction to Probability and Terminology

In this video, Adrian discusses the basic building blocks of probability as well as why it’s important to understand the concept of probability. Some terminology is also introduced so that …

The Role of Ethics Part 1

In this video, Adrian speaks about why we need to consider ethics in our analysis, provides a list of of principles to consider, and gives examples of unethical analysis. Why …

Measures of Association

In this video we have provided a new measure, demonstrated it’s calculation, and summarised our statistics. Our new measure of correlation is useful for determining whether there is a linear …

Computing Descriptive Statistics in Excel

We’ve now covered various descriptive statistics, and now you should also be able to calculate them yourselves using Excel. Note that while most common statistics can be produced automatically using …

Good Graphs

What makes a good graph? It’s easy to spot a bad graph. I’m sure everyone has seen graphs before that only made the data more confusing. A quick search will …

Measures of Shape

We introduce the idea of ‘skewness’ in this video. Skewness tells us about the symmetry of the distribution of data. Skewness of 0 means that the data is perfectly symmetric, …

Line Plots and Scatter Plots

We now have our last two plots. Line plots are valuable tools for visualising how a variable changes across time and is one of the most common plots you will …

Histograms

While pie and bar charts are useful for visualising data where only a few values are possible (such as hair colours or product names), we need a different tool for …