Dear Professor Mean,
When should you use a weighted mean?
Loyal Reader
Dear Reader,
Weighted means are used in a variety of settings. it’s hard to define all the possible settings, but here are a few common ones.
When a data point represents the contributions of a variable number of patients.
When some data points are more variable/less variable than other data points.
When certain demographic groups are over or under represented.
For complex samping schemes.