If your male is a proven 100% het for Ghost and your female isn’t het at all, then every egg has a 50/50 chance of the male throwing the Ghost gene, or a 50% probability. If both parents were het for Ghost, then you would have a 66% probability that any non visual Ghost animals would be het for Ghost. The probability is just that, how probable is the likelihood that the hatchling is carrying the gene. The reality is, every snake either is 100% het or is not het at all, and the only way to know is to breed them and prove it out one way or the other. When you breed a visual animal to a non het animal, then everything will be 100% het because a visual animal carries two copies of the gene and will throw one of the two, with every egg. I hope that helps.