Question

Is a census practical if… You want to determine the average (mean) annual salary of the current members of congress

Answer 1

The census is practical in this scenario because the current number of members of congress, according to congress.gov, is 546, so this is not a huge number and the census can be practically conducted.

Reference:

https://www.congress.gov/members?q=%7B%22congress%22%3A117%7D