{"id":"5c5b69d134991938ed32e52d","name":"OpenIntro Statistics","summary":"Edfinity is supported by the National Science Foundation","description":"\u003cp dir=\"ltr\" id=\"isPasted\"\u003eThis online user-contributed homework course comprises of algorithmic problems carefully organized into problem sets mapped to textbook sections. Use this course as-is, or customize at any level. 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Save precious class time for discussions.\u003c/li\u003e\u003cli dir=\"ltr\"\u003e\u003cstrong\u003eEmporium classes:\u003c/strong\u003e Use Edfinity for individual/group work for large enrollment sections in labs.\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eEdfinity is a full-featured homework system that supports mathematically-aware problems with algebraic input, evaluation of mathematical expressions, randomized variants, prerequisite pathways for personalized learning, collaboration, coordinated courses, flexible configuration of students\u0026rsquo; experience, and complete customization of assignments.\u003c/p\u003e","description_more":"","price":40.0,"sort_order":0,"active":true,"individual_license":false,"section_id":"5fdd14b62c7e2374eb7b6b08","permissive_license":false,"type":"course","year":null,"section_license":true,"taxable":false,"purchasable":true,"related_product_ids":["5c5b99c7726e95636c33bd56"],"paired_product_id":null,"min_quantity":null,"max_quantity":null,"audience":"educator_audience","site_ids":["55843bd46435650003000000"],"package_price":null,"show_toc":true,"author_roles":[],"author_role_title":"Contributors (Alphabetical)","institution":"","tags_array":["STATISTICS","oer"],"hidden_tags":[],"meta_description":null,"term_pricing":true,"curricula":null,"curricula_course":null,"highlights":"\u003cdiv class=\"mb-3\"\u003e\u003cspan class=\"fa fa-subscript fa-fw mr-2\"\u003e\u003c/span\u003e \u003cstrong\u003eInteractive, algorithmic problems\u003cbr\u003e\u003c/strong\u003eAlgebraic, graphing, open response; randomized variants, hints, and tips\u003c/div\u003e\u003cdiv class=\"mb-3\"\u003e\u003cspan class=\"fa fa-hand-holding-heart fa-fw mr-2\"\u003e\u003c/span\u003e\u003cstrong\u003eAdaptive learning and personalization\u003cbr\u003e\u003c/strong\u003eEach student receives personalized support\u003cbr\u003eto fill learning gaps.\u003c/div\u003e\u003cdiv class=\"mb-3\"\u003e\u003cspan class=\"fa fa-fw fa-code-branch mr-2\"\u003e\u003c/span\u003e\u003cstrong\u003eCorequisite course structures\u003cbr\u003e\u003c/strong\u003eUse pre-built corequisite content,\u003cbr\u003eor create your own.\u003c/div\u003e\u003cdiv class=\"mb-3\"\u003e\u003cspan class=\"fa fa-hands-helping fa-fw mr-2\"\u003e\u003c/span\u003e\u003cstrong\u003eLMS integration and accessibility\u003cbr\u003e\u003c/strong\u003eConnect to your LMS in minutes. \u003ca class=\"”underline”\" href=\"http://edfinity.com/vpat\" target=\"_blank\"\u003eVPAT here\u003c/a\u003e.\u003c/div\u003e\u003cdiv class=\"mb-3\"\u003e\u003cspan class=\"fa fa-plug fa-fw mr-2\"\u003e\u003c/span\u003e\u003cstrong\u003eWeBWorK-compatible\u003cbr\u003e\u003c/strong\u003eImport and author WeBWorK problems.\u003c/div\u003e","preview_assignment":{"id":"631f82df5c1b200030b7de2c","name":"1.1 Case study: using stents to prevent strokes","product":{"id":"5c5b69d134991938ed32e52d","name":"OpenIntro Statistics"},"master_set":{"id":"66d4b9ce511ae00002563a4d","problems":{"id":"66d0d4e148330b006daeba39","proof":false,"graphical_geometric":false,"tags_array":[],"grade_level_from":null,"grade_level_to":null,"skill_ids":[],"contest_event_ids":[],"header":"\u003cp\u003eThe table below contains the total number of deaths worldwide as a result of earthquakes from 2000 to 2012.\u003c/p\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003eYear\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003eTotal Number of Deaths\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2000\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$231$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2001\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$21,357$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2002\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$11,685$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2003\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$33,819$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2004\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$228,802$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2005\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$88,003$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2006\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$6,605$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2007\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$712$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2008\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$88,011$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2009\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$1,790$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2010\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$320,120$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2011\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$21,953$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003e2012\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$768$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"text-align: center;\"\u003eTotal\u003cbr\u003e\u003c/td\u003e\u003ctd style=\"text-align: center;\"\u003e$823,856$\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eAnswer each of the following using at least four decimal places of accuracy.\u003c/strong\u003e\u003c/p\u003e","solution":"","numeric_tolerance":null,"partial_credit":null,"max_attempts":null,"timeout_seconds":null,"allow_practice":null,"override_show_work":null,"instructional":false,"sketchable":true,"print_num_spacing_lines":3,"print_page_break":false,"partial_scoring":null,"part_attributes":[{"id":"5cfae241b4f8f80022280312","part_id":"5cfae1afb4f8f8001028035c","description":null,"points":1.0,"automatic_manual_credit":true,"accessible":false,"question":"\u003cp\u003eWhat is the proportion of deaths between 2007 and 2012?\u003c/p\u003e","answer":"0.5242","solution":null,"format":"fr","answer_validation":{"type":"number"},"field_length_pixels":null,"validation_expression":"^[-+]?\\d*\\.?\\d*$"},{"id":"5cfae241b4f8f80022280313","part_id":"5cfae1c8b4f8f8001028037a","description":null,"points":1.0,"automatic_manual_credit":true,"accessible":false,"question":"\u003cp\u003eWhat percent of deaths occurred before $2001$? Enter your answer without the percent sign.\u003c/p\u003e","answer":"0.028039","solution":null,"format":"fr","answer_validation":{"type":"number"},"field_length_pixels":null,"validation_expression":"^[-+]?\\d*\\.?\\d*$"},{"id":"5cfae241b4f8f80022280314","part_id":"5cfae1dab4f8f800432803b3","description":null,"points":1.0,"automatic_manual_credit":true,"accessible":false,"question":"\u003cp\u003eWhat is the percent of deaths that occurred in $2003$ or after $2010$? Enter your answer without the percent sign.\u003c/p\u003e","answer":"6.86","solution":null,"format":"fr","answer_validation":{"type":"number"},"field_length_pixels":null,"validation_expression":"^[-+]?\\d*\\.?\\d*$"},{"id":"5cfae241b4f8f80022280315","part_id":"5cfae1eab4f8f8000e280162","description":null,"points":1.0,"automatic_manual_credit":true,"accessible":false,"question":"\u003cp\u003eWhat is the proportion of deaths that happened before $2012$?\u003c/p\u003e","answer":".999068","solution":null,"format":"fr","answer_validation":{"type":"number"},"field_length_pixels":null,"validation_expression":"^[-+]?\\d*\\.?\\d*$"}],"readonly":{"created_at":"2024-08-29T20:06:57.153Z","updated_at":"2024-08-29T20:06:57.153Z","version":43,"user_id":"58ecdcd48ccf1800120c8ac3","name":"Multiple parts","skill_ids":[],"current_digest":"KY/8i0QxmxebcV406Rhd+MXoeZkrvMaj5Cb3Kubre9s=","tags":"","points":4.0,"type":"core","multipart":true,"shallow":true,"static":true,"sources":[],"owned":false,"url":"/problems/66d0d4e148330b006daeba39","searchable_text":"p The table below contains the total number of deaths worldwide as a result of earthquakes from 2000 to 2012 p table tbody tr td style text align center Year br td td style text align center Total Number of Deaths br td tr tr td style text align center 2000 br td td style text align center 231 br td tr tr td style text align center 2001 br td td style text align center 21 357 br td tr tr td style text align center 2002 br td td style text align center 11 685 br td tr tr td style text align center 2003 br td td style text align center 33 819 br td tr tr td style text align center 2004 br td td style text align center 228 802 br td tr tr td style text align center 2005 br td td style text align center 88 003 br td tr tr td style text align center 2006 br td td style text align center 6 605 br td tr tr td style text align center 2007 br td td style text align center 712 br td tr tr td style text align center 2008 br td td style text align center 88 011 br td tr tr td style text align center 2009 br td td style text align center 1 790 br td tr tr td style text align center 2010 br td td style text align center 320 120 br td tr tr td style text align center 2011 br td td style text align center 21 953 br td tr tr td style text align center 2012 br td td style text align center 768 br td tr tr td style text align center Total br td td style text align center 823 856 br td tr tbody table p br p p strong Answer each of the following using at least four decimal places of accuracy strong p p What is the proportion of deaths between 2007 and 2012 p 0 5242 p What percent of deaths occurred before 2001 Enter your answer without the percent sign p 0 028039 p What is the percent of deaths that occurred in 2003 or after 2010 Enter your answer without the percent sign p 6 86 p What is the proportion of deaths that happened before 2012 p 999068","abilities":["read"]}},"readonly":{"shallow":true}}},"readonly":{"level_range":"13","created_at":"2019-02-06T23:12:17.606Z","updated_at":"2026-03-15T19:38:19.193Z","tags":"STATISTICS,oer","author_ids":[],"licensed":true,"thumbnail":"https://d1q29jrdo98n6g.cloudfront.net/uploads/product/image/5c5b69d134991938ed32e52d/thumb_openintro-statistics-2.jpg","free":false,"user_price":40.0,"term_price":40.0,"displayed_price":40.0,"levels":"13","author_role_title":"Contributors (Alphabetical)","abilities":[],"section":{"id":"5fdd14b62c7e2374eb7b6b08","name":"OpenIntro Statistics 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distribution"},{"id":"631f83175c1b200078b7df06","name":"5.1 Point estimates and sampling variability Part 1"},{"id":"63323de9f1cbf20057f99fe1","name":"5.1 Point estimates and sampling variability Part 2"},{"id":"631f831b5c1b200057b7de86","name":"5.2 Confidence intervals for a proportion"},{"id":"631f831e5c1b200078b7df33","name":"5.3 Hypothesis testing for a proportion"},{"id":"631f83225c1b200048b7db60","name":"6.1 Inference for a single proportion"},{"id":"631f83255c1b200048b7db76","name":"6.2 Difference of two proportions"},{"id":"631f83285c1b200048b7db83","name":"6.3 Testing for goodness of fit using chi-square"},{"id":"631f832c5c1b200026b7e18e","name":"6.4 Testing for independence in two-way tables"},{"id":"631f83305c1b200030b7e020","name":"7.1 One-sample means with the t-distribution Part 1"},{"id":"633225fba72ceb0020a89b05","name":"7.1 One-sample means with the t-distribution Part 2"},{"id":"631f83335c1b200030b7e026","name":"7.2 Paired data"},{"id":"631f83365c1b200020b7dd71","name":"7.3 Difference of two means"},{"id":"631f833c5c1b200048b7dba7","name":"7.5 Comparing many means with ANOVA"},{"id":"631f83415c1b200068b7def1","name":"8.1 Fitting a line, residuals, and correlation"},{"id":"631f83465c1b200068b7df17","name":"8.2 Least squares regression"},{"id":"631f834b5c1b200057b7df0a","name":"8.3 Types of outliers in linear regression"},{"id":"631f834f5c1b200030b7e07a","name":"8.4 Inference for linear regression"},{"id":"631f98f95c1b200030b83589","name":"Extra Problems"}]}}