How many of the Abelian Group properties hold for the Rubik's cube? A) 1
B) 2
C) 3
D) 4
E) 5

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .