How long does a pair of jeans last before wearing out? is a statistical question, as it seeks generalizable information about the average lifespan of jeans, enabling the analysis of trends across a group. Here option B is correct.
Statistical questions involve gathering data and analyzing patterns or trends. In the given options:
A. "How long did your last pair of jeans last before wearing out?" - This is not a statistical question as it asks for a specific value regarding an individual's experience, rather than seeking generalizable information.
B. "How long does a pair of jeans last before wearing out?" - This is a statistical question because it aims to gather information about the average or typical lifespan of jeans, making it possible to analyze trends or patterns across a group of people.
C. "How long does a pair of Levi's brand jeans last before wearing out?" - This question is somewhat statistical as it targets a specific brand, but it is more specific than necessary for a general analysis. A more broadly phrased question about jeans in general might be more suitable for a statistical inquiry. Here option B is correct.