at school with 100 students 40 were Arabic 37 Bulgarian and 38 Chinese 29 students only take Arabic 19 take only Bulgarian and 21 take only Chinese in addition nine are taking both aerobic and Bulgarian some of whom also take Chinese how many students are taking all three languages none of these three languages

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.