OpenIntro features a number of free books that can be used in high school and AP statistics courses. The license on these datasets is currently unknown. You can find out more about OpenIntro at https://www.openintro.org.
Researchers wanting to understand the relationship between these variablesfor black cherry trees collected data from 31 trees in the AlleghenyNational Forest, Pennsylvania.
diam - diameter in inches (at 54 inches above ground)
height - height is measured in feet
volume - volume in cubic feet
D.J. Hand. A handbook of small data sets. Chapman & Hall/CRC, 1994.
Picostat is a web-based opensource statistical application framework based on Drupal 8 and ℝ. Drupal can be used to manage user datasets and perform basic statistical analysis with a NoCode end-user interface ideal for non-technical users. Custom applications can be easily integrated into the system using webforms and ℝ language syntax.