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Question
A large marketing firm has decided to do a study that describes the needs of practicing teachers regarding instructional materials. The vice-president wants data from 400 practicing teachers. Shawna, a researcher with the firm, sends a mass mailing and when 400 surveys are returned she analyzes the data. Shawna is best illustrating which sampling strategy?a. Cluster sampling
b. Quota sampling
c. Purposive sampling
d. Convenience sampling
Answer
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