Question: The 2004 Naples Florida minimarathon 13 1 miles had 1228 registrants

The 2004 Naples, Florida, minimarathon (13.1 miles) had 1228 registrants (Naples Daily News, January 17, 2004). Competition was held in six age groups. The following data show the ages for a sample of 40 individuals who participated in the marathon.
a. Show a stretched stem-and-leaf display.
b. What age group had the largest number of runners?
c. What age occurred most frequently?
d. A Naples Daily News feature article emphasized the number of runners who were "20 something." What percentage of the runners were in the 20-something age group? What do you suppose was the focus of the article?

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