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 first list the ages in order from least to greatest:
28, 31, 32, 42, 47, 49
There are 6 ages in total, so the median will be the middle value when the ages are in order.
Since there are an even number of values, the median will be the average of the two middle numbers: 32 and 42
Median = (32 + 42) / 2
Median = 74 / 2
Median = 37
Therefore, the median age of the group of friends is 37 years old.