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A researcher 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

2 Answers

5 votes

Answer: Stratified

Explanation:

User Engineforce
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3 votes

Answer: stratified

Step-by-step explanation:

User Vidy
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