sample distribution vs sampling

sample distribution and sampling both are nouns.

Word	Noun	Adjective	Verb	Adverb
sample distribution	Yes	No	No	No
sampling	Yes	No	No	No

As nouns, sample distribution and sampling are synonyms defined as:

sample distribution and sampling: items selected at random from a population and used to test hypotheses about the population

Other synonyms of sample distribution include sample.

sample distribution (noun)	sampling (noun)
items selected at random from a population and used to test hypotheses about the population	(statistics) the selection of a suitable sample for study
	measurement at regular intervals of the amplitude of a varying waveform (in order to convert it to digital form)
	items selected at random from a population and used to test hypotheses about the population