Mathematics
Mathematics, 23.08.2019 20:30, Aquaflash

Aresearcher wishes to investigate differences in college admission rates between students at two high schools. she randomly select 100 students from the 200 seniors at school a and 100 students from the 300 students at school b. what sampling method did she use?
cluster
stratified
simple random
systematic

answer
Answers: 3

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