Brain Games › Data Detective

Practices: Mean, median and range, plus spotting weak surveys and cause-versus-link mix-ups. Puzzles are made fresh by the computer and checked on our server. Guest play is never saved. If a parent picks a child profile, only right or wrong per puzzle (plus any “how sure” tap and computer-check choice) is saved to their account. The computer and robot samples are written by our puzzle code, not a chatbot, and are sometimes wrong on purpose.