Given the data set (10, 45), (25, 70), (46, 105), which of the following equations best represents a line of best fit? A) y = 1/3x + 40.5
B) y = 5/3x + 28.33
C) y = 4/3x − 40.5
D) y = 3/5x − 28.33

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 .