Find the median of 18, 3, 13, 8, 9, 11, 14 and 9.

The correct answer is Option (2) → 10

The median is the middle value once the data are put in order. With an even number of values there are two middle values, and the median is their average.

• In order: 3, 8, 9, 9, 11, 13, 14, 18 (8 values)

• The middle values are the 4th and 5th: 9 and 11

• Median \(\displaystyle =\frac{9+11}{2}=10\)