Cross-section and Random sample

Cross-section adjective - Representing a plane made by cutting across something at right angles to its length.

Random sample and cross-section are semantically related. in representative sample topic. In some cases you can use "Random sample" instead a noun phrase "Cross-section".

Random sample noun - A sample in which every element in the population has an equal chance of being selected.

Cross-section and random sample are semantically related. Sometimes you can replace phrase "Cross-section" with "Random sample", this phrases are similar.