Are students who get high grades in Biology more likely to get high grades in American Literature? Students who are good in one subject tend to be good at other subjects, but is the tendency significant? To answer this question, suppose Isaac acquires course grade-point average (GPA) data from a random sample of 40 students who took both Biology and American Literature.

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.