A song that may be used in discussing the value of blocking (or matching) in reducing variation in an experiment. The lyrics were written by Mary McLellan from Aledo High School in Aledo, Texas as one of several dozen songs created for her AP statistics course. The song may be sung to the tune of the 1966 Beach Boys hit "Good Vibrations". Also, an accompanying video may be found at https://www.youtube.com/watch?v=TPCnjwyH8As