Mathematics, 14.02.2020 01:05 mansoorahmedd67
In a poll conducted by a certain research center, 978 adults were called after their telephone numbers were randomly generated by a computer, and 70 % were able to correctly identify the secretary of state. Which type of sampling did the research center use?
a. random.
b. systematic.
c. convenience.
d. stratified.
e. cluster.
Answers: 2
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In a poll conducted by a certain research center, 978 adults were called after their telephone numbe...
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