To find the median of a set of data, you need to arrange the values in order from least to greatest and then find the middle value. If there are an odd number of values, the median is the middle value. If there are an even number of values, the median is the average of the two middle values.
So, for the data set 10, 16, 12, 15, 7, we can arrange the values in order from least to greatest:
7, 10, 12, 15, 16
Since there are an odd number of values, the median is the middle value, which is 12. Therefore, the median of the data 10, 16, 12, 15, 7 is 12.