proportional sample

NOUN
19 LETTERS · STARTS WITH P

proportional sample is a valid 19-letter word worth 26 points in Scrabble and 33 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3R1O1P3O1R1T1I1O1N1A1L1S1A1M3P3L1E1
3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 3 + 3 + 1 + 1 =26 PTS
DOUBLE WORD → 52TRIPLE WORD → 78
MEANING

What does proportional sample mean?

NOUN · 1 SENSE
1

The population is divided into strata and a random sample is taken from each stratum.