Since you use the term "CI," I assume that you mean "confidence interval" and have some understanding of the concept. Often people write "+- "t o indicate that the "underlying" population number/count falls within an interval. The…
There is a Propublica Story Indicating that the Trump DOJ is demanding the Citizenship be put on the 2020 Census (it is on the ACS). This could have dire consequences for the 2020 Census
www.propublica.org/.../trump-justice-department-pushes-for-citizenship…