Results of any sample are subject to sampling variation.
ENGADGET: Ikea to sell only LED-based lighting by 2016, wants to be greener than your sofa bed
Results for the full sample have a margin of sampling error of plus or minus 3.9 percentage points, it is larger for subgroups.
NPR: 50 Years On, Finding Profit In 'Truth' On JFK Case
This online survey is not based on a probability sample and therefore no estimate of theoretical sampling error can be calculated.
FORBES: Connect
The survey's sampling error is plus or minus 3 percentage points for the overall sample.
CNN: Obama seeks revisions to Afghanistan plans, sources say
应用推荐
模块上移
模块下移
不移动