1 small quantity of sth
ADJ. blood, DNA, faecal, RNA, rock, serum, tissue, urine, etc. | biopsy, clinical
VERB + SAMPLE collect, take | provide All the athletes had to provide a urine sample. | analyse, study, test
SAMPLE + NOUN book We looked at sample books to choose the furniture fabric. | bottle
PREP. ~ of samples of tissue
2 people in a survey
ADJ. small | large, wide | population | representative | random
VERB + SAMPLE draw a sample drawn from men aged 35?40
SAMPLE + VERB comprise sth, consist of sth Our sample comprised 250 catering workers.
SAMPLE + NOUN size A larger sample size yields more reliable data. | survey | group
PREP. ~ of a wide sample of people
PREP. from The survey was done using a group of 100 children randomly sampled from the school population.