Roughly about as often as they give birth to an equivalently less intelligent than average child? Assuming that "average intelligence" means somewhere close to the center of a reasonably normal distribution ("bell curve").
Could you say more about where you are going with that, what point you are exploring?
How often does a pair of average-intelligence parents give birth to a very intelligent child?
Roughly about as often as they give birth to an equivalently less intelligent than average child? Assuming that "average intelligence" means somewhere close to the center of a reasonably normal distribution ("bell curve").
Could you say more about where you are going with that, what point you are exploring?