Marna is playing a game where you score ? 5 points each time you guess the correct answer. the goal is to get the lowest score. to win the game, marna must have a score less than ? 80 points. how many correct answers does marna need to win the game?

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 .