st-console binary package in Ubuntu Focal amd64

 st-console is command-line tool for calculate statistics
 from a file or standard input. It allow one to calculate:
 sum, arithmetic mean, median, percentile, quartile, standard
 deviation or standard error.
 .
 It's a simpler solution for simpler problems focused on
 descriptive statistics, handy when you need quick mathematics
 results without leaving the shell.

Source package