How to Perform Proportional Stratified Sampling in Excel

This videos steps through how to perform proportional stratified sampling in Excel using a 'unique' filter, 'countif', 'rand' and sorting and filtering data. Want to download the Excel file shown in this video or have more information on Sampling? See my free OpenEd textbook: https://pressbooks.bccampus.ca/1130sandbox/chapter/sampling/