Hi there! A statistical question is a question that can be answered by collecting and analyzing data. Here are some ways to tell if a question is a statistical question:
- The question asks for a numerical or quantitative answer. For example, “How many students in the class have a dog as a pet?”
- The question requires data to answer. For example, “What is the average height of students in the class?”
- The question asks about a population or sample. For example, “What proportion of students in the class prefer pizza over hamburgers?”
A statistical question requires data with variability because it is the variability in the data that makes the question interesting and informative. For example, a question like “What is the height of the students in the class?” is not a statistical question because the answer is a fixed value that does not vary. However, a question like “What is the range of heights of the students in the class?” is a statistical question because it requires data with variability to answer.
Here are some examples of statistical questions:
- What is the average temperature in the city during the summer months?
- How many people in the town use public transportation to commute to work?
- What is the relationship between hours of sleep and academic performance in students?
- What is the distribution of ages in the population of the country?
- What is the difference in average salary between people with a college degree and people without a college degree?