Why is a survey better than a case study to find out people's preferences for choosing one video game system over another? surveys will give you 100% accuracy in guessing which video game system a person will buy. case studies focus on a lot of people to get the results you want. case studies are not interested in opinions about how much time a person should play video games. surveys allow many people to report their personal opinions.

After graduating from college with a degree in education, matt found a teaching jobin saudi arabia. he figured that a teaching job in the middle east would be the same as a teaching job in the united states. while there were similarities between american and saudi schools, matt was unprepared for the differences between the two cultures. on the first day, a number of his students arrived later than the class's designated 10 a.m. starting time. later, during a break, he noted that his students seemed to stand closely to each other and to him when they spoke. after class, a confused matt asked the american director of the teaching program about these observations. that's why it's always important to do your homework! the director responded with a laugh. what is the possible explanation that director could gave him?