PSY292 - Chapter 6

The two requirements that must be satisfied for a random sample:

1) Every individual in the population has an equal chance of being selected. 2) When more than one individual is being selected, the probabilities must stay constant. This means that there must be sampling with replacement

What is sampling with replacement, and why is it used?

Each individual is selected from a sample is returned to the population before the next individual is selected. This is done to ensure that the probability of selecting any specific individual remains constant

Independent Random Sample

Requires that each individual has an equal chance of being selected and that the probability of being selected stays constant from one selection to the next if more than one individual is selected.