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Mathematics, 16.11.2019 05:31 ily50
Aprofessor wants to know how undergraduate students at x university feel about food services on campus, in general. she obtains a list of email addresses of all 15,000 registered undergraduates from the registrar’s office and mails a questionnaire to 300 students selected at random. only 150 questionnaires are returned. what is the size of the population?
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