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You work for a pharmaceutical company and want to know what kind of feedback your sales reps are getting on a new drug. You have 100 sales regions with over 50 sales reps in each region. You send a questionnaire to all of the sales reps in 5 randomly selected sales regions.

This is an example of what kind of sample?

A

Simple random sample

B

Stratified sample

C

Convenience sample

D

Cluster sample

E

Systematic sample

Select an assignment template