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.
For example, Pew Research Center conducted a survey with the followingquestion: "As you may know, by 2014 nearly all Americans will be required tohave health insurance. People who do not buy insurance will pay a penaltywhile people who cannot afford it will receive financial help from thegovernment. Do you approve or disapprove of this policy?" For each randomlysampled respondent, the statements in brackets were randomized: either theywere kept in the order given above, or the two statements were reversed.
order - a factor with levels cannot_afford_secondpenalty_second
response - a factor with levels approvedisapproveother
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.