Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cumulative progeny distributions for South Australian girls' names (a) and boys' names (b). Black lines: empirical distributions over a 70-year span, grey lines: neutral progeny distribution with maximum-likelihood parameters, red lines: progeny distribution for novelty disadvantage. ML, maximum likelihood.
