Premodifier: random
Head noun: sample

Same concepts
http://dbpedia.org/resource/Sampling_(statistics)

Broader concepts

labelprovenanceconfidence
thingisap:1212839500.549653
bias sampleisap:3972768170.378399
exampleisap:4498189700.218709
sequenceisap:1040214120.218134
datumisap:1224374770.144792