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Mathematics, 01.02.2021 03:10 krys4281

A student would like to estimate the average number of text messages sent by cell-phone users in a day. Which of the following methods would provide a voluntary response sample? A- A surgery of adults leaving a movie theater
B- A survey of all students in a statistics class
C- A text poll provided during a nightly news broadcast
D- A survey of every 10th person leaving a large shopping mall

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