What would be the explanation that we need to add the filter of aged grouping is it because there is no relationship between HR data and Age grouping table (dim table) ?
In the table used you have: Full Name column and Average Salary measure (that calculates the average annual salary from the table HR Data.)
There is no way to communicate with Age Groups.
For this reason, you build the measure Age grouping. Through this measure you can leverage the age coming from the table “HR Data” to your Age groups in a dynamic way.