The stem-and-leaf plot shows the ages of a group of friends. Find the median age. Stem Leaf 2 8 3 1 2 4 4 2 7 9 5 4 Key: 2|8=28 years

To find the median age, we need to arrange the ages in ascending order first:

21, 24, 27, 28, 29, 34, 42

The median is the middle value, which in this case is 28 years.