HP provides a type of model name near the keyboard or screen, but this name or number is probably not sufficient to get proper support for your computer. These names or numbers often represent a series of many notebook computers that look similar, but have different options and parts.
Fundamentally, river sampling is a web-based convenience sample of opt-in participants that uses a quota sampling approach to build a study sample. The selection method is not probability based, and participants cannot be described as representing any larger defined population.
Definitions. 1  Sampling is the process of selecting a representative group from the population under study. 2  The target population is the total group of individuals from which the sample might be drawn. 3  A sample is the group of people who take part in the investigation.