Survey Says?: When You Hear the Margin of Error Is Plus or Minus 3 Percent, Think 7 Instead There are many ways, besides the well-known sampling error, to get things wrong in polling. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Greece earthquake: Zante hit by series of tremors days after devastating quakeTrilobites: A Volcanic Eruption on Mars? Nope.Trilobites: Why Textbooks May Need to Update What They Say About Birth CanalsHalloween 2018: Solar storms to cause ‘GHOSTLY-GREEN’ skies over HalloweenWhy Private Equity is Furious Over a Paper in a Dermatology JournalNext biological weapon FOUND? Insect ARMY being harnessed in the US