How to Add or Subtract Years in Google Sheets
Learn how to move dates forward for backward by whole years.
Tutorials
Horizontal XLOOKUP in Google Sheets: A Practical Guide
Learn how to perform a horizontal XLOOKUP in Google Sheets. See several examples.
Data Types Well-Suited for Stratified Sampling
Learn what which data sets are a good fit for stratified sampling.
A Comprehensive Guide to Stratified Sampling
Learn about stratified random sampling including when to use it and how it works.
Systematic Sampling: A Step-by-Step Guide
Learn about systematic sampling for your spreadsheet data.