LesserxLesser Bel ?????

I'm new to bp's been a boa breeder most of my adult life every ball with the exception of a few I got when my father passed a few months back most female were already gravid my brother and I made a split he took most of the balls I took all the eggs when they were laid the onlymorph my father went with that were sameXsame were lessers (according to his documents) I should have been more clear but thank you for clearing this up for me

There are some cumulative odds you can figure for those 20 eggs. The 25% chance bel per egg is correct but if all hatch you can figure the odds of getting AT LEAST one bel as 1 - (0.75)^20 = 99.7%. Basically what this does is take the chance that each isn't a bel (75%) and figures the odds of that happening 20 times in a row. Then you subtract that from 1 to figure the odds of it not happening.

So, if all the eggs hatch and are all lesser x lesser you have a very good chance of getting at least 1 bel and most likely more. While nothing is certain you might well hit the long term average of 5 (25% of 20). But, you have to hatch the eggs first ...