This problem involves empirical probability. The table shows the breakdown of 89 thousand single parents on active duty in the U. S. military in a certain year. All numbers are in thousands and rounded to the nearest thousand.

The probability that a randomly selected single parent in the U. S. military is in the Navy given that the parent is a female
Army Navy Marine Corps Air Force Total
Male 22 24 8 12 66
Female 9 7 2 5 23
Total 31 31 10 17 89