Concept explainers
Find if the sampling method is random, systematic, or stratified.
Answer to Problem 20CR
Explanation of Solution
Given information:
Given: An interviewer outside a movie theater asks every third person standing in a line if he or she will see more or fewer movies in the coming years.
Calculation:
Here, the objective is to determine the sampling method and then write the unbiased survey question.
Now, in the systematic sampling method select any number
Now, put
Hence, the sampling method is
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