Answer:
Set Y has the smaller mean. Mean means average.
Step-by-step explanation:
Set X: 20.45+28+22.25+16.5+13+18.05=118.25 divide that by 6. 118.25/6= 19.71
Set Y: 21+6+5+24+9+40= 95 divide that by 6. 95/6= 15.83
