1. The freshmen data is skewed right, while the sophomores data is more symmetric and bell-shaped.
2. Yes, the freshmen group has an outlier at 10 hours.
3. The sophomores data set has a greater center (median around 5-6 hours vs. freshmen median around 3 hours).
4. The freshmen group has a wider spread of data (range from 1 to 10 hours vs. sophomores range from 2 to 8 hours).
5. Sophomores may have more demanding coursework or more structured study habits than freshmen.
6. False
7. Tuesday’s data is skewed right with a gap, while Saturday’s data is more uniform and symmetric.
8. Tuesday’s peak is at ages 20-24, while Saturday has multiple peaks across several age groups.
9. The center (median) for Saturday is higher than for Tuesday.
10. Yes, the surveyor left out ages below 20 and above 65; this likely affected the data by excluding younger teens and seniors who may visit the mall at those times.
11. True
12. On Tuesday afternoon, fewer people are available to shop, possibly because students are in school and working adults are at work, leading to a smaller, older sample.
Parent Tip: Review the logic above to help your child master the concept of data analysis worksheet.
