I am administrator for a y-dna project.
I am continually puzzled by the results from the calculator for TMRCA. For example, I have two participants that match 65/67 and we know that the MCRA is 5 generations back. If you run TiP and input that MCRA must be back more than 4 generations, you get only a 40% probability that it is within 5 generations. Another example, I have a match of 110/111 with someone, and we know the MCRA must be beyond 5 generations.If I input 5 generations it shows a 45% probability that the MCRA is within the last 5 generations.
Does anyone find this information at all useful?
I am continually puzzled by the results from the calculator for TMRCA. For example, I have two participants that match 65/67 and we know that the MCRA is 5 generations back. If you run TiP and input that MCRA must be back more than 4 generations, you get only a 40% probability that it is within 5 generations. Another example, I have a match of 110/111 with someone, and we know the MCRA must be beyond 5 generations.If I input 5 generations it shows a 45% probability that the MCRA is within the last 5 generations.
Does anyone find this information at all useful?
Comment