When working with a large concordance, random sample is used to reduce the number of concordance lines while preserving the representativeness of the sample. The number of lines defined by the user will be randomly selected from all parts of the corpus.
The lines will stay in the same order as they appear in the corpus.
A random sample with the same number of lines generated from the same concordance will always produce exactly the same concordance lines. This behaviour is intentional so that different users (e.g. students) can follow the same steps and arrive at the same result. To generate a different sample, a different number should be used. Setting the value to 201 instead of 200 will generate a completely different sample.