From the above data we get the correct options are narrower SD is greater.
We have given that,
Two movie theaters each surveyed 21 customers to determine their ages the table shows a summary of the results.
What is the meaning of the survey?
A survey is a research method used for collecting data from a predefined group of respondents to gain information and insights into various topics of interest.
Therefore from the above data we get the correct options are narrower SD is greater.
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