Question

Vince wants to draw a sample of people in hawaii who own 1960s schwinn sting-ray children's bicycles, a collector's item. there is no list of the people, but there is an informal network (acquaintances) of sting-ray owners. what type of sampling should vince use?

Answer 1

Simple Random Sampling is the type of sampling which Vince should use.  In SRS or Simple Random Sampling, the sample is random because each owner in the informal network (acquaintances) has an equal chance of being chosen.