Final answer:
To find the median, sort the data in ascending order. As there are 15 values, the median is the 8th value, which is 31.
Step-by-step explanation:
To find the median of a given set of data, you need to arrange the data in ascending order and then identify the middle value(s). If the number of data points is odd, the median is the middle value. If the number of data points is even, the median is the average of the two middle values.
Let's arrange the provided data in order: 0, 20, 22, 23, 25, 30, 31, 31, 34, 35, 35, 36, 46, 49, 654.
Since there are 15 values, which is an odd number, the median will be the 8th value when sorted. The 8th value is 31.
Therefore, the median of the given data set is 31.