3 kinds of sampling

You're going to compare the performance of point estimates using simple, stratified, and cluster sampling. Before doing that, you'll have to set up the samples.

You'll use the RelationshipSatisfaction column of the attrition_pop dataset, which categorizes the employee's relationship with the company. It has four levels: Low, Medium, High, and Very_High. pandas has been loaded with its usual alias, and the random package has been loaded.