In just about any discussion of a poll about the very close presidential race between Vice President Kamala Harris and former President Donald Trump, you'll hear the ...

Wondering how many people in the United States have a smartphone? If you poll 20 people on the street, your survey won’t be representative of the entire American population. But if you just want to ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Every survey finding published by Pew Research ...

Hi, I hope this is the best forum for this question and that someone can enlighten me with a clear answer. I work in a head office of a bank. One of my responsibilities is Quality Checking the work of ...