1) A teacher groups test scores into intervals (e.g., 0-10, 11-20, etc.) to calculate quartiles and identify which students fall into the top 25% of the class. a) YES b) NO 2) An HR manager calculates the average salary of employees in a company but does not divide the data into intervals or analyze quartiles. a) YES b) NO 3) A researcher categorizes time spent online by students into intervals (e.g., 10-12 minutes,13-15 minutes) and calculates quartiles to understand usage patterns. a) YES b) NO 4) A city planner counts the number of accidents at various intersections but only reports total counts without analyzing their distribution. a) YES b) NO 5) A marketing team analyzes customer ages by grouping them into intervals (e.g., 18-24, 25-34) and calculates quartiles to target specific demographics. a) YES b) NO 6) A financial advisor records monthly expenses for clients and computes the median expensebut does not divide the data into intervals or calculate quartiles. a) YES b) NO 7) A coach groups athletes’ sprint times into intervals (e.g., 10-12 seconds, 13-15 seconds) and calculates quartiles to evaluate performance levels. a) YES b) NO 8) A librarian examines the number of pages in books but only identifies the book with the most pages and does not analyze distribution patterns or quartiles. a) YES b) NO 9) A restaurant owner groups wait times during peak hours (e.g., 0-5 minutes, 6-10 minutes) and calculates quartiles to improve service efficiency. a) YES b) NO 10) A researcher collects survey responses on a scale of 1-10 but only reports the average score without analyzing intervals or calculating quartiles. a) YES b) NO

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