Pew Research Center is a nonpartisan, nonadvocacy fact tank that informs the public about the issues, attitudes and trends shaping the world.

Learn the distinctions between simple and stratified random sampling. Understand how researchers use these methods to accurately represent data populations.

The four steps of the election process and data collection at NBC news. Learn how election votes are counted and 2026 ...

A base year is the first of a series of years in an economic or financial index. Base years are also used to measure the ...

Excel's Total Row uses smart SUBTOTAL logic to ignore hidden data, adapt to filters, flag text errors, and measure performance volatility.

Popular charts based on SP500 returns are fundamentally flawed due to the use of highly overlapping & non-independent samples. Read the full analysis here.

Trump made a series of exaggerated and false claims as he touted his administration's work on the economy, crime, immigration and more.

Immigration is defined as the process people go through to live permanently in a foreign country. Economically, immigration can be beneficial to both the receiving and sending countries, and some ...

In these politically divisive times, there’s one thing we all agree on—we don’t want a giant data center in our backyard. Behold, the hyperscale data center! Massive structures, with thousands of ...

A newly enacted New York law requires retailers to say whether your data influences the price of basic goods like a dozen eggs or toilet paper, but not how. If you’re near Rochester, New York, the ...

On Election Day, Peter Hubbard was one of two Democratic candidates who took a decisive—and surprising—victory in Georgia. Hubbard was elected to the Georgia Public Service Commission, the body that ...