Statistical and Non-Statistical Questions

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What is a statistical question?

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A statistical question is one that anticipates variability in the data and can be answered by collecting data. For example, 'How many hours do students study each week?'

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CCSS.6.SP.A.1

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What is a non-statistical question?

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A non-statistical question is one that expects a single answer and does not involve variability. For example, 'What is your favorite color?'.

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CCSS.6.SP.A.1

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How can you tell if a question is statistical?

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If the question can be answered by collecting data from a group and involves variability, it is statistical.

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CCSS.6.SP.A.1

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How can you tell if a question is non-statistical?

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If the question is about a specific individual or expects a single answer without variability, it is non-statistical.

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CCSS.6.SP.A.1

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Example of a statistical question: 'What is the average height of students in my class?'

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This question is statistical because it involves measuring the heights of multiple students.

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CCSS.6.SP.A.1

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Example of a non-statistical question: 'What is the height of my friend Sarah?'

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This question is non-statistical because it asks for a specific answer about one person.

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CCSS.6.SP.A.1

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Why is 'How many pets do students have?' a statistical question?

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Because it involves collecting data from multiple students, leading to a variety of answers.

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CCSS.6.SP.A.1

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Why is 'What is the weight of my dog?' a non-statistical question?

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Because it refers to a specific dog and expects a single answer.

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CCSS.6.SP.A.1

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What does it mean to collect data?

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Collecting data means gathering information or measurements to answer a question.

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CCSS.1.MD.C.4

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What is variability in data?

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Variability refers to how much the data points differ from each other. It shows the range of possible answers.

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CCSS.6.SP.A.3