We'll look at sampling methods using a synthetic (fictional) employee attrition dataset from IBM

Here's a dataset of US presidential elections. Each row represents a presidential election at the county level. The variables in the dataset are the US state, the county within that state, and the percentage of votes that went to the Democrat candidate in 2008, and in 2012.

The late_shipments dataset contains supply chain data on the delivery of medical supplies. Each row represents one delivery of a part. The late columns denotes whether or not the part was delivered late. A value of "Yes" means that the part was delivered late, and a value of "No" means the part was delivered on time.

Each year, Stack Overflow surveys its users, who are primarily software developers, about themselves, how they use Stack Overflow, their work, and the development tools they use. In this analysis we'll look at a subset of the survey responses, from users who identified as Data Scientists.

Two publishers, Marvel and DC, have created a host of superheroes that have made their way into popular culture. You’re probably familiar with Batman and Spiderman, but what about Mor the Mighty? The comics dataset has information on all comic characters that have been introduced by DC and Marvel.