Given:
Gathering data from the first 25 people you encounter at a local mall.
Required:
We need to classify the sample.
Explanation:
Recall that a stratified sample divides a sample into subgroups.
Gathering data from the first 25 people you encounter at a local mall is not divided into subgroups. it is not a stratified sample.
Recall that a convenience sample is taken from a group of people easy to contact or reach.
Gathering data from the first 25 people you encounter at a local mall is not taken as a convenience sample.
Recall that systematic sampling is a probability sampling method where researchers select members of the population at a regular interval.
Gathering data from the first 25 people you encounter at a local mall is not selected at regular intervals. It is not a systematic sampling.
Recall that random sampling is a part of the sampling technique in which each sample has an equal probability of being chosen.
Gathering data from the first 25 people you encounter at a local mall is chosen by equal probability.
Final answer:
Random sampling.