To find the probability of selecting a horse in the barn, we need to know the total number of horses and the number in the barn.
To find the total, add the values in the "Total" row:
16 + 11 + 12 + 39 = 78
To find the number of horses in the barn, add the values in the "In the barn" row:
4 + 2 + 7 + 13 = 26
Now divide 26 by 78 to find the probability:
26/78 = 1/3 or about 33%
The answer is 33%