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.
(a, b) are for the standard normal distribution; (c, d) are for the t-distribution with degrees of freedom 5; and (e, f) are for the gamma distribution with parameters 3 and 1. Here, the number of samples in (a), (c), (e) are 5, and the number of samples in (b), (d), (f) are 20.
