Mathematics, 15.12.2021 03:50 gabbycasey102
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 survey 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
Answers: 3
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A student would like to estimate the average number of text messages sent by cell-phone users in a d...
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