The following video provides a great introduction to doing pivot tables in Excel: https://youtu.be/UsdedFoTA68
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Relative vs. Absolute Cell References in Excel
Here is a short clip explaining how relative cell references differ from absolute cell references in Excel.
Here is also a link to my Excel demo spreadsheet.
What is a Relational Database?
This video demonstrates differences between a relational database and an Excel spreadsheet for storing data:
How Bad Data Ruins Your Day
Here are some of my favorite horror stories how things went wrong due to bad data:
https://www.simscale.com/blog/2017/12/nasa-mars-climate-orbiter-metric/
Telling Stories with Data
There are several ‘how to’ articles on how to tell a story with data, just google ‘telling stories with data’:
https://www.google.com/search?q=telling+stories+with+data
They all tell pretty much the same story, so you can choose the one that works for you.
Beware of Online Filter Bubbles
An old but still relevant TED talk by Eli Pariser on how the web is being inconspicuously personalized for individual tastes creating bubbles of like-minded people.
…and its critique:
…and a more recent take on the topic:
https://www.theverge.com/interface/2019/11/12/20959479/eli-pariser-civic-signals-filter-bubble-q-a
A Simple Vocabulary of Data Science Concepts
A short summary of important data science concepts we discuss during the course in Aleksi Aaltonen’s blog:
https://aleksiaaltonen.medium.com/a-simple-vocabulary-of-data-science-concepts-dc29c633f5ee
It’s just 2 min read and gives you an overview of many important concepts we will discuss during the semester.
Correlation without Causation
Here are some brilliant examples of correlations that surely do not indicate causation!