確率標本

かくりつひょうほん

noun

•

random sample

確	assurance, firm, tight, hard, solid, confirm, clear, evident
率	ratio, rate, proportion, %, factor, lead, spearhead, command
標	signpost, seal, mark, stamp, imprint, symbol, emblem, trademark, evidence, souvenir, target
本	book, present, main, origin, true, real, counter for long cylindrical things