The average person on Earth has one ovary and one testicle.
Sorry to be a pedant, but this isn't quite accurate. Due to gender imbalances in China and India, there are approximately 1.01 males for every 1.00 females in the world.
So the average person on Earth has approximately 1.0049 testicles and 0.9950 ovaries, not counting taking into account eunuchs







