This is only a sampling of distortions, half-truths and sleight-of-words.
A sampling of comments on various news sites makes the political divide surrounding this ad painfully clear.
The report claims not only that the study measured for cannabis and risk of accident, but that it was a sampling of national data.
c.1300, "something which confirms a proposition or statement," from Anglo-French saumple, a shortening of Old French essample, from Latin exemplum "a sample" (see example). Meaning "small quantity (of something) from which the general quality (of the whole) may be inferred" (usually in a commercial sense) is recorded from early 15c.; sense of "specimen for scientific sampling" is from 1878. As an adjective from 1820.
"to test by taking a sample," 1767, from sample (n.). Earlier "to be a match for" (1590s). Related: Sampled; sampling.
In statistics, a group drawn from a larger population and used to estimate the characteristics of the whole population.
Note: Opinion polls use small groups of people, often selected at random, as a sample of the opinions of the general public.