To determine which questions are statistical questions, we need to identify those that require data collection from multiple individuals and involve variability in responses.
Here are the questions that qualify as statistical questions:
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What time of the day are my friends most likely to exercise? - This asks for data from multiple people and looks for a general trend.
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What types of exercise do my friends prefer? - This question seeks to gather varied responses from a group.
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How many times a week do my friends exercise? - This also requires responses from multiple individuals and will likely yield varied results.
The following questions do not qualify as statistical questions because they pertain to a single individual:
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How many days each week does Melanie exercise? - This question is about one person and does not involve variability.
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Does Heather like to do different exercises? - This is also about a single individual and does not seek broader information.
Therefore, the correct statistical questions are:
- What time of the day are my friends most likely to exercise?
- What types of exercise do my friends prefer?
- How many times a week do my friends exercise?