Description of issue -
sessionInfo()
Referred here from support.rstudio.com
The core package stats has basic functions for normal distributions: https://www.rdocumentation.org/packages/stats/versions/3.5.0/topics/Normal
stats
Within R, you can do a broad keyword search for help relating to a term by using ??. For instance, ??"Normal Distribution" gets you this result:
??
??"Normal Distribution"