Tell a statistical question, one answered by collecting data that varies, from a question with one fixed answer.
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One test: will answering it need data that varies?
Everyday claims like 'I take about 15 minutes to cycle home' are statistical statements.
Your teacher is meeting two childhood friends: one is 5 feet tall, the other 6 feet. Most people guess the shorter one is a woman and the taller one a man.
You could be wrong. But experience says men are more often taller than women. That's statistical thinking.
Which of the book's seven questions are statistical, and why?
Problem. Which of these are statistical questions? (Math Talk, Textbook p. 98)
Decide which questions need data that varies.
'How many hours do Grade 7 students sleep on school nights?'
Write two statistical questions about your school.
Write two statistical questions about your class or school, and one question that is not statistical. For each, say what data you would collect.
Will the data vary?
Will the data vary?
One fixed answer?