The margin of sampling error was plus or minus 3 percentage points.
抽样错误的差额是正负3%。
The poll of 1,288 people was conducted July 7-11 and has a margin of sampling error of plus or minus 3.5 percentage points.
这项调查于7月7日至11日之间开展，共对1288名受访者进行了访问，抽样误差率为正负3.5个百分点。
The poll of 1, 288 people was conducted July 7-11 and has a margin of sampling error of plus or minus 3.5 percentage points.
这项调查于7月7日至11日之间开展，共对1288名受访者进行了访问，抽样误差率为正负3.5个百分点。
For smaller subgroups, the margin of sampling error is larger.
原始团体越小，样本得出结论的误差越大。
For smaller subgroups, the margin of sampling error is larger.
原始团体越小，样本得出结论的误差越大。
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