Question

in which type of sample does each member of the entire population have the same chance of being selected?
a a random sample
b a quota sample
c an index sample
d a roper sample

Explanation:

A random sample is a sampling method where each member of the population has an equal probability of being selected. Quota samples select based on pre - set quotas, index samples are based on some index criteria, and Roper samples are a specific non - random sampling approach.

Answer:

A. a random sample