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Math·Problem-Solving and Data Analysis·One-variable data: Distributions and measures of center and spread
hard| Age (years) | Frequency |
|---|---|
| 85 | 12 |
| 90 | 14 |
| 95 | 15 |
| 100 | 10 |
| Total | 51 |
Ari will add a 135-year-old stamp to her original collection of 51 stamps. Which statement correctly compares the mean ages and median ages of Ari’s original and new collections?
A
The mean age for the new collection is greater than the mean age for the original collection, and the median age for the new collection is greater than the median age for the original collection.
B
The mean age for the new collection is greater than the mean age for the original collection, but the median age is the same for the original and new collections.
C
The mean age for the new collection is less than the mean age for the original collection, and the median age for the new collection is less than the median age for the original collection.
D
The median age for the new collection is greater than the median age for the original collection, but the mean age is the same for the original and new collections.