Question

sampling based upon equal probability is called

Answer 1

It is called random sampling.

Answer 2

Sampling based upon equal probability is called simple random sampling.

1. Sampling means to select a subset or a sample from a given population.
2. In simple random sampling all the items in the sample have same probability of getting selected.
3. It is chosen randomly to minimize bias.
4. It is practically difficult to use this method despite it being theoretically easy.