The stem-and-leaf plot shows the ages of a group of friends. Find the median age.

Question

Stem Leaf
2 8
3 1 2 4
4 2 7 9
5 4

Key: 2|8=28 years (1 point)

Answer 1

To find the median age, we first need to list all the ages in numerical order:

28, 31, 32, 34, 42, 47, 49, 54

Since there are 8 ages, the median will be the average of the 4th and 5th ages when listed in numerical order.

Therefore, the median age of the group of friends is (34 + 42) / 2 = 38 years.