This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Glottochronology probabilities. en Binomial distribution of probabilities for the number of cognates in the Swadesh List after millennium asumen constant retention probability of the same for all words It can be shown that the averge number is cognates of but there is significative probability to obtain slightly greater or lower