Assertion: poll | /r/HasAspect | a margin of error
Facets:
Source sentences:
text: Every poll has a margin of error (plus/minus so many percent), which you ignore at your peril, particularly with small numbers or differences.
text: We all know that each poll has its own margin of error, but cumulatively, the swings in support for the four major candidates across all January polls are simply off the charts.
text: Both polls had a margin of error around 3 percent, making the shift in popularity figures slight, if at all.