{"id":"cb_practice_pdf:t9-math-m1-q6","source_id":"cb_practice_pdf","source_item_id":"t9-math-m1-q6","external_id":null,"ibn":null,"question_id":null,"program":"SAT","module":"math","domain_code":null,"domain":null,"skill_code":null,"skill":null,"difficulty":null,"score_band":null,"answer_type":"spr","answer_source":"rationale","layout_warning":null,"form_id":"cb_practice_pdf:test-9","module_number":1,"position":6,"stem":"Each value in the data set shown represents the height, in centimeters, of a plant. 6, 10, 13, 2, 15, 22, 10, 4, 4, 4 What is the mean height, in centimeters, of these plants?","stimulus":"","stimulus_html":null,"stem_html":"<p>Each value in the data set shown represents the height, in centimeters, of a plant. 6, 10, 13, 2, 15, 22, 10, 4, 4, 4 What is the mean height, in centimeters, of these plants?</p>","rationale_html":"<p>The correct answer is 9. The mean of a data set is the sum of the values in the data set divided by the number of values in the data set. It follows that the mean height, in centimeters, of these plants is the sum of the heights, in centimeters, of 6+10+13+2+15+22+10+4+4+4 90 each plant, , or , divided by the 10 number of plants in the data set, . Therefore, the mean height, in centimeters, of 90 these plants is 10, or 9.</p>","correct_answer":["9"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[],"attribution":{"source_id":"cb_practice_pdf","source_name":"College Board full-length SAT practice tests (PDF)","rights_holder":"College Board","canonical_url":"https://satsuite.collegeboard.org/practice/practice-tests/paper","retrieved_from":"https://satsuite.collegeboard.org/practice/practice-tests/paper","attribution":"Full-length SAT practice tests 4–11 © College Board, published free at satsuite.collegeboard.org.","disclaimer":"Extracted from PDF layout: equations, figures and tables do not survive intact. Use the original PDFs for anything the text renders poorly. SAT® is a trademark registered by the College Board, which is not affiliated with and does not endorse this project.","license":"College Board copyright. Free to download; not licensed for redistribution.","redistributable":false,"item_count":905}}