The median of the first eight non-negative integers (0, 1, 2, 3, 4, 5, 6, 7) is 3.5.
To find the median, we first list the first eight non-negative integers: 0, 1, 2, 3, 4, 5, 6, 7.
Since there are eight numbers (an even number), the median is the average of the middle two numbers. In this case, the middle two numbers are 3 and 4.
The median is calculated as (3 + 4) / 2 = 7 / 2 = 3.5.