{"id":"cb_question_bank:b0c3e34a-9de6-4e68-b22d-d1c6ec322f51","source_id":"cb_question_bank","source_item_id":"b0c3e34a-9de6-4e68-b22d-d1c6ec322f51","external_id":null,"ibn":"020744-DC","question_id":"aa43b41f","program":"SAT","module":"math","domain_code":"Q","domain":"Problem-Solving and Data Analysis","skill_code":"Q.G.","skill":"Evaluating statistical claims: Observational studies and experiments","difficulty":"H","score_band":6,"answer_type":"mcq","answer_source":"key","layout_warning":null,"form_id":null,"module_number":null,"position":null,"stem":"Near the end of a US cable news show, the host invited viewers to respond to a poll on the show’s website that asked, “Do you support the new federal policy discussed during the show?” At the end of the show, the host reported that 28% responded “Yes,” and 70% responded “No.” Which of the following best explains why the results are unlikely to represent the sentiments of the population of the United States?","stimulus":"","stimulus_html":null,"stem_html":"<p class=\"stem_paragraph \">Near the end of a US cable news show, the host invited viewers to respond to a poll on the show’s website that asked, “Do you support the new federal policy discussed during the show?” At the end of the show, the host reported that 28% responded “Yes,” and 70% responded “No.” Which of the following best explains why the results are unlikely to represent the sentiments of the population of the United States?</p>\n","rationale_html":"<p>Choice B is correct. In order for the poll results from a sample of a population to represent the entire population, the sample must be representative of the population. A sample that is randomly selected from a population is more likely than a sample of the type described to represent the population. In this case, the people who responded were people with access to cable television and websites, which aren’t accessible to the entire population. Moreover, the people who responded also chose to watch the show and respond to the poll. The people who made these choices aren’t representative of the entire population of the United States because they were not a random sample of the population of the United States.</p><p>Choices A, C, and D are incorrect because they present reasons unrelated to whether the sample is representative of the population of the United States.</p><p>&nbsp;</p><p></p>\n","correct_answer":["B"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":"2023-08-02T20:25:59.616000+00:00","source_updated_at":"2023-08-02T20:25:59.616000+00:00","options":[{"label":"A","content_html":"<p class=\"choice_paragraph \">The percentages do not add up to 100%, so any possible conclusions from the poll are invalid.</p>\n","ord":0},{"label":"B","content_html":"<p class=\"choice_paragraph \">Those who responded to the poll were not a random sample of the population of the United&nbsp;States.</p>\n","ord":1},{"label":"C","content_html":"<p class=\"choice_paragraph \">There were not 50% “Yes” responses and 50% “No” responses.</p>\n","ord":2},{"label":"D","content_html":"<p class=\"choice_paragraph \">The show did not allow viewers enough time to respond to the poll.</p>\n","ord":3}],"attribution":{"source_id":"cb_question_bank","source_name":"College Board digital SAT question bank (community dump)","rights_holder":"College Board","canonical_url":"https://satsuitequestionbank.collegeboard.org/","retrieved_from":"https://raw.githubusercontent.com/mdn522/sat-question-bank/main/data/cb-digital-questions.json","attribution":"SAT practice questions © College Board, from the official SAT Suite Question Bank. Retrieved via the community dump at github.com/mdn522/sat-question-bank.","disclaimer":"SAT® and PSAT/NMSQT® are trademarks registered by the College Board, which is not affiliated with, does not sponsor, and does not endorse this project.","license":"College Board copyright; source repository carries no licence. Local use only.","redistributable":false,"item_count":2017}}