Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Somer G. Anderson is CPA, doctor of ...

When people read about a poll, they are often told something like this: Pollsters call a random group of people. Though small, we can infer this group is a representative sample of the U.S. population ...

When that message comes from Uncle Sam, it’s often delivered in the form of a survey. The federal government amasses an astounding amount of data each year from nationally representative surveys on ...