Learn how representative samples and random samples differ and why combining them minimizes sampling bias for accurate data.

Melissa Horton is a financial literacy professional. She has 10+ years of experience in the financial services and planning industry. Robert Kelly is managing director of XTS Energy LLC, and has more ...

Manual sampling techniques such as hand scoop and spigot sampling are common methods with food and beverage producers and processors. These convenient and low-cost, direct methods are widely accepted ...