Assertion: poll | /r/HasAspect | a margin of error of plus
Facets:
Source sentences:
text: The poll of 900 adults was conducted Jan. 20-23, and had a margin of error of plus or minus 3.3 percentage points.
text: It has a margin of error of plus or minus 3.6 percent.
text: The poll, which has a margin of error of plus or minus 4 percentage points, was conducted by live callers and included 40% cellphone participation.