Jeff’s par scores for five rounds of a golf game were 4, –3, 5, –3, and –4. what was his final score? –1 7 –19 19

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 .