Sampling Frame: A sampling frame is a list or representation of all individuals in a population from which a sample will be drawn.
Margin of Error: The margin of error is a measure of how much the results from a sample may differ from the true population value. It accounts for variability and uncertainty in statistical estimates.
Stratified Sampling: Stratified sampling involves dividing a population into subgroups (strata) based on certain characteristics and then selecting samples from each stratum proportionally.