{"id":59725,"date":"2022-02-10T14:13:00","date_gmt":"2022-02-10T18:13:00","guid":{"rendered":"https:\/\/www.shortform.com\/blog\/?p=59725"},"modified":"2022-02-14T13:01:52","modified_gmt":"2022-02-14T17:01:52","slug":"neglect-of-probability","status":"publish","type":"post","link":"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/","title":{"rendered":"The Neglect of Probability Bias in Decision-Making"},"content":{"rendered":"\n<p>What is the neglect of probability bias? Do you consider the probabilities of possible outcomes when making decisions?<\/p>\n\n\n\n<p>Neglect of probability bias is the tendency to disregard probability or risk when making decisions in the face of uncertainty. The most optimal choice is the one that has the highest probability of turning out well, but people tend to opt for the option that will have the biggest positive impact if it occurs, regardless of how likely it is.<\/p>\n\n\n\n<p>Here&#8217;s why we tend to neglect probability when making decisions. <\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-neglect-of-probability\"><strong>Neglect of Probability<\/strong><\/h2>\n\n\n\n<p>According to Dobelli, people struggle to make good decisions because <strong>they neglect to consider the probability or risk involved in those decisions. <\/strong>Logically, they should choose the option with the highest probability of going well for them and the lowest risk of going badly. However, people instead choose the option that will have the biggest positive impact on them if it occurs, regardless of how likely it is to occur. For example, Dobelli argues that people are more likely to invest in a risky stock that <em>could <\/em>have a huge return on investment than a safe stock that has lower returns.&nbsp;<\/p>\n\n\n\n<p>(Shortform note: Dobelli claims that investors frequently invest solely based on the possible yield of an investment, rather than its risk, and uses this example to prove the validity of his claims regarding neglect of probability. However, this example isn\u2019t accurate: <a href=\"https:\/\/www.investopedia.com\/ask\/answers\/041415\/what-are-some-common-measures-risk-used-risk-management.asp\">Investors use various risk management strategies when investing<\/a>, including analyzing the historical value of the stock to determine the risk of its value changing in the future.)<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Denominator Neglect<\/strong><br><br><a href=\"https:\/\/shortform.com\/app\/book\/thinking-fast-and-slow\/part-4-3#:~:text=chances%20are%20overestimated%20and%20higher,denominator%20small%20and%20focus%20on%20the\">A type of neglect that Dobelli <em>doesn\u2019t <\/em>cover is denominato<em>r<\/em> neglect<\/a>, which Daniel Kahneman describes in <a href=\"https:\/\/shortform.com\/app\/book\/thinking-fast-and-slow\"><em>Thinking, Fast and Slow<\/em><\/a><em>.<\/em> If the probability is a fraction, with the situation you\u2019re evaluating on top and the total number of possibilities on the bottom, people base their judgment of risk solely on the top number, or numerator, and ignore the bottom number, or denominator. This means they regularly misinterpret probability, since the numerator depends on the denominator.<br><br>For example, if you only considered the numerators when comparing a 1\/100 chance of injury and a 100\/10,000 chance of injury, you\u2019d misinterpret the second scenario as much more likely to occur, even though the probability of injury is actually the same.<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the neglect of probability bias? Do you consider the probabilities of possible outcomes when making decisions? Neglect of probability bias is the tendency to disregard probability or risk when making decisions in the face of uncertainty. The most optimal choice is the one that has the highest probability of turning out well, but people tend to opt for the option that will have the biggest positive impact if it occurs, regardless of how likely it is. Here&#8217;s why we tend to neglect probability when making decisions.<\/p>\n","protected":false},"author":7,"featured_media":5362,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9,25],"tags":[576],"class_list":["post-59725","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-psychology","category-statistics","tag-the-art-of-thinking-clearly","","tg-column-two"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v24.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The Neglect of Probability Bias in Decision-Making - Shortform Books<\/title>\n<meta name=\"description\" content=\"Bad decisions are often the result of failure to account for the probability involved in those decisions. Here&#039;s why we neglect probability.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Neglect of Probability Bias in Decision-Making\" \/>\n<meta property=\"og:description\" content=\"Bad decisions are often the result of failure to account for the probability involved in those decisions. Here&#039;s why we neglect probability.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/\" \/>\n<meta property=\"og:site_name\" content=\"Shortform Books\" \/>\n<meta property=\"article:published_time\" content=\"2022-02-10T18:13:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-02-14T17:01:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.shortform.com\/blog\/wp-content\/uploads\/2019\/12\/sapiens-game-theory.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"766\" \/>\n\t<meta property=\"og:image:height\" content=\"498\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Darya Sinusoid\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Darya Sinusoid\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/\"},\"author\":{\"name\":\"Darya Sinusoid\",\"@id\":\"https:\/\/www.shortform.com\/blog\/#\/schema\/person\/0421cce75bc249b11e2517b3a91f9c46\"},\"headline\":\"The Neglect of Probability Bias in Decision-Making\",\"datePublished\":\"2022-02-10T18:13:00+00:00\",\"dateModified\":\"2022-02-14T17:01:52+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/\"},\"wordCount\":390,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.shortform.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.shortform.com\/blog\/wp-content\/uploads\/2019\/12\/sapiens-game-theory.jpg\",\"keywords\":[\"The Art of Thinking Clearly\"],\"articleSection\":[\"Psychology\",\"Statistics\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/\",\"url\":\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/\",\"name\":\"The Neglect of Probability Bias in Decision-Making - Shortform Books\",\"isPartOf\":{\"@id\":\"https:\/\/www.shortform.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.shortform.com\/blog\/neglect-of-probability\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.shortform.com\/blog\/wp-content\/uploads\/2019\/12\/sapiens-game-theory.jpg\",\"datePublished\":\"2022-02-10T18:13:00+00:00\",\"dateModified\":\"2022-02-14T17:01:52+00:00\",\"description\":\"Bad decisions are often the result of failure to account for the probability involved in those decisions. 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