a) A research group conducted a study in which a randomly selected group of 378 Canadian adults were surveyed. The responses indicated that 30% of those surveyed owned their own home. What is the population that the research group can draw conclusions about, and what is the sample that they are using? 0 The population is the 30% that owned their own home. The sample is the 378 adults surveyed. O The population is the 378 adults surveyed. The sample is the 30% that owned their own home. 0 The population is all Canadian adults. The sample is the 378 adults surveyed. b) A snack company produces bags of jellybeans that are intended to contain 100 grams of jellybeans. To check this, ten bags are chosen at random every day and their average weight is measured and recorded. Under the assumption that the bags are being filled correctly, which graph best represents what twenty days of results might look like. Graph A Graph B 95 96 97 98 99 100 101 102 103 104 105 95 96 97 98 99 100 101 102 103 104 105 Graph D Graph C 95 96 97 98 99 100 101 102 103 104 105 95 96 97 98 99 100 101 102 103 104 105 O Graph A O Graph B O Graph C O Graph Dc) A university is using a survey to gather data from a sample students regarding their ancestry. They would like to use the results to draw conclusions about the entire student body. Which of the following would not affect their ability to generalize the results obtained from the sample to the entire student population? 0 Only Arts majors were asked to answer the survey 0 A random sample of only 20% of the students on campus were asked to answer the survey. 0 Of the 1000 surveys handed out, only 200 were completed and returned 0 All of these would cause problems in generalizing the results to all students