by Brit Nicholson | Dec 1, 2020 | Blog, Probability and Statistics

Using very simple math to get the most out of multiple kits Many genetic genealogy enthusiasts have their own DNA genotyped as well as some of their siblings. As the enthusiast of your family, you might have access to all of these kits. Or, if they’re all on...
by Brit Nicholson | Oct 23, 2020 | Blog, Probability and Statistics

A formula to improve your ability to estimate the genetic relationship between two parents GEDmatch has had a tool called “Are Your Parents Related” (AYPR) for a few years now. The tool is helpful and easy to use. Some have argued that this information shouldn’t...
by Brit Nicholson | Sep 29, 2020 | Blog, Probability and Statistics

What’s the probability that two children share one whole copy of the X chromosome without sharing a father? I’ve made an X chromosome model that predicts shared X DNA percentages and ranges for various ancestors, but I haven’t yet calculated ranges...
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