Final answer:
To find the median, first arrange the numbers in ascending order. For an odd number of values, the median is the middle value. In this case, the median of the seven numbers provided is 14.
Step-by-step explanation:
To find the median of the given numbers (12, 8, 28, 22, 12, 30, 14), you should first arrange them in ascending order.
After organizing, the ordered set is 8, 12, 12, 14, 22, 28, 30. Since there is an odd number of values (7 data values), the median will be the middle value of the ordered list. With seven numbers, the fourth value is the median. Hence, the median for this data set is 14.