What is the median of the following set of numbers: 23, 15, 30, 18, 25, 12, 20?
✓ Correct Answer: Option B
To find the median, first arrange the numbers in ascending order: 12, 15, 18, 20, 23, 25, 30. The median is the middle value in an ordered set. With seven numbers, the fourth number, 20, is the median.