Selecting a random sample from a set is simple. But what about selecting a fair random sample from a set of unknown or indeterminate size? That’s where reservoir sampling comes in, and [Sam Rose] has ...

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 ...

The pharmaceutical and biotech industries are going through tremendous changes that have been increased by the recent global financial challenges. The FDA is promoting the use of Quality-by-Design ...

Systematic sampling is straightforward and low risk, offering better control. However, it may introduce sampling errors and ...