Yes, SAMPLINGS is a Scrabble word!

Letter values in Scrabble US: S 1, A 1, M 3, P 3, L 1, I 1, N 1, G 2, S 1.

Is it a valid word?

SAMPLINGS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

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

Also: sample distribution, try out.