Computers can be used to a) play music

b) play games

c) control traffic lights

d) a, b, c

What kind of geography deals with people and how they affect the world ?

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.

Susan, a los angeles resident, appears on a new nbc reality show, my big fat obnoxious accountant. susan is the first to be "kicked off the island" and leaves the show in shame. on her way out, she throws a temper tantrum and destroys some of the furniture on the set. nbc and the production company that made the show are incorporated and headquartered in new york, where the show is filmed. nbc and the producers have offices and conduct business in los angeles and san francisco. humiliated by the loss, susan plans to sue nbc and the producers of the show for breach of contract, fraud and intentional infliction of emotional distress, seeking $200,000 in damages. susan is considering filing her lawsuit in california state court, new york state court or the federal courts. as to each of the state courts, indicate whether personal jurisdiction exists and why.