{"id":11148,"date":"2017-12-08T21:15:29","date_gmt":"2017-12-08T21:15:29","guid":{"rendered":"https:\/\/www.manhattanprep.com\/gre\/?p=11148"},"modified":"2019-08-30T16:40:25","modified_gmt":"2019-08-30T16:40:25","slug":"data-interpretation-understanding-graph","status":"publish","type":"post","link":"https:\/\/www.manhattanprep.com\/gre\/blog\/data-interpretation-understanding-graph\/","title":{"rendered":"Data Interpretation: Start by Understanding the Graph"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11152\" src=\"https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/data-interpretation-understanding-graph-cat-powell.png\" alt=\"Manhattan Prep GRE Blog - Data Interpretation: Start by Understanding the Graph by Cat Powell\" width=\"1200\" height=\"628\" srcset=\"https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/data-interpretation-understanding-graph-cat-powell.png 1200w, https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/data-interpretation-understanding-graph-cat-powell-300x157.png 300w, https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/data-interpretation-understanding-graph-cat-powell-768x402.png 768w, https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/data-interpretation-understanding-graph-cat-powell-1024x536.png 1024w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p><b><i>You can attend the first session of any of our online or in-person GRE courses absolutely free. Ready to take the plunge? <\/i><\/b><a id=\"bloglink\" href=\"https:\/\/www.manhattanprep.com\/gre\/classes\/\" target=\"_blank\" rel=\"noopener\"><b><i>Check out our upcoming courses here<\/i><\/b><\/a><b><i>.<\/i><\/b><\/p>\n<hr \/>\n<p><b><i><\/i><\/b><span style=\"font-weight: 400;\">In each Quant section on the GRE, you\u2019ll see three questions that ask about a graph or pair of graphs; these are the Data Interpretation (DI) questions. All three questions usually refer to the same graph(s) and show up about two-thirds of the way through the section.<\/span><!--more--><\/p>\n<p><span style=\"font-weight: 400;\">I find that students tend to love or hate these Data Interpretation questions. For some, they feel comfortable and routine, a nice respite from mathematically trickier questions elsewhere in the section. Others, however, find them overwhelming; there\u2019s too much information, and it takes too long to sort through it.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Both types of students are right. On the one hand, the actual calculations involved in Data Interpretation questions are often quicker and more straightforward than those in regular Quant questions. On the other hand, there is a lot of extraneous information in these problems, and they can be big time wasters.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">My strategy for working with these graphs is similar to the one I use with long passages in Reading Comp: I understand the main idea and outline of the passage upfront, then I get into the details when and if a question asks about them. So, each time I get to the first Data Interpretation question, I take some time to unpack the graph before diving into the questions.<\/span><\/p>\n<h4><b>First, I identify what type of Data Interpretation graph I\u2019m working with.<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">This will already tell me a lot about what kind of information I\u2019m going to get. For example, if I see a bar graph, then I know that I\u2019ll be able to quickly assess the relative sizes of different categories, as in this example:<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11149\" src=\"https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/cp-12-image-1.png\" alt=\"Manhattan Prep GRE Blog - Data Interpretation: Start by Understanding the Graph by Cat Powell\" width=\"486\" height=\"297\" srcset=\"https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/cp-12-image-1.png 486w, https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/cp-12-image-1-300x183.png 300w\" sizes=\"auto, (max-width: 486px) 100vw, 486px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Conversely, if I see a pie chart, I know I\u2019ll get information about how a whole is divided into parts. I may or may not get information about the actual numbers involved. For example, in this pie chart, I can tell that there are more pitbulls than pugs, but I can\u2019t tell exactly how many I have of either. In general, I want to pay attention to whether I\u2019m getting actual numbers or just percents. If a chart gives me percents, like this one here, then I can\u2019t say anything about actual numbers without also being given a total number.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11150\" src=\"https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/cp-12-image-2.png\" alt=\"Manhattan Prep GRE Blog - Data Interpretation: Start by Understanding the Graph by Cat Powell\" width=\"490\" height=\"297\" srcset=\"https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/cp-12-image-2.png 490w, https:\/\/www.manhattanprep.com\/gre\/wp-content\/uploads\/sites\/19\/2017\/12\/cp-12-image-2-300x182.png 300w\" sizes=\"auto, (max-width: 490px) 100vw, 490px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Some other common types of graphs that you should be familiar with are line graphs, scatter plots, and stacked bar graphs.<\/span><\/p>\n<h4><b>Second, I read the title.<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">This is an important step that many students skip over\u2014don\u2019t! The title can give you very useful information about how to read the graph. In the graphs above, for example, the titles alone tell me that I\u2019m going to get information about how all of the dogs in the park divide into different breeds.<\/span><\/p>\n<h4><b>Third, I check my axes and labels.<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">I see what units I\u2019m working with and what categories are being compared. In my bar graph, for example, I have the number of dogs in my Y axis, compared to breeds in the X axis. I also check to see if I\u2019m dealing with actual numbers, with percents, or with both.<\/span><\/p>\n<h4><b>Fourth, I\u2019ll pick one point on the graph and explain what that point means.<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">For example, the red slice on my pie chart tells me that 15% of all dogs at the dog park are pugs. On a straightforward graph like this one, this step may feel unnecessary. Graphs on the GRE, however, are seldom as simple as the examples I\u2019ve given here. Explaining one point allows me to feel confident that I\u2019ve understood how the graph works without my having to look at the overwhelming mass of information that\u2019s being presented in the graph.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">These steps take a bit of time upfront. However, once I\u2019ve understood my graphs, I\u2019ll then be able to locate any information I need to answer the questions quickly and correctly. Since the actual calculations involved won\u2019t be as time-consuming as in other Quant problems, taking time to understand the graphs will make my work with Data Interpretation questions more efficient overall.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Data Interpretation questions can reliably boost your score if you approach them in a consistent and methodical way. Take your time upfront and don\u2019t let the mass of information intimidate you. ?<\/span><\/p>\n<hr \/>\n<p><b><i>Want more guidance from our GRE gurus? You can attend the first session of any of our online or in-person GRE courses absolutely free! We\u2019re not kidding.\u00a0<\/i><\/b><a href=\"https:\/\/www.manhattanprep.com\/gre\/classes\/\" target=\"_blank\" rel=\"noopener\"><b><i>Check out our upcoming courses here<\/i><\/b><\/a><b><i>.<\/i><\/b><\/p>\n<hr \/>\n<p><em><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-10560 size-thumbnail\" src=\"https:\/\/d27gmszdzgfpo3.cloudfront.net\/gre\/wp-content\/uploads\/sites\/19\/2017\/08\/cat-powell-1-150x150.png\" alt=\"cat-powell-1\" width=\"150\" height=\"150\" \/><a id=\"bloglink\" href=\"https:\/\/www.manhattanprep.com\/instructors\/cat-powell\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cat Powell<\/a>\u00a0is a Manhattan Prep instructor based in New York, NY.\u00a0<\/strong>She spent her undergraduate years at Harvard studying music and English and is now pursuing an MFA in fiction writing at Columbia University. Her affinity for standardized tests led her to a 169Q\/170V score on the GRE.\u00a0<a id=\"bloglink\" href=\"https:\/\/www.manhattanprep.com\/gre\/classes\/\" target=\"_blank\" rel=\"noopener noreferrer\">Check out Cat\u2019s upcoming GRE courses here<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>You can attend the first session of any of our online or in-person GRE courses absolutely free. Ready to take the plunge? Check out our upcoming courses here. In each Quant section on the GRE, you\u2019ll see three questions that ask about a graph or pair of graphs; these are the Data Interpretation (DI) questions. [&hellip;]<\/p>\n","protected":false},"author":160,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,474284,17,921840,421,6,7,9,733445,154333],"tags":[1362508],"yst_prominent_words":[],"class_list":["post-11148","post","type-post","status-publish","format-standard","hentry","category-challenge-problems","category-current-studiers","category-data-interpretation","category-gre-prep-2","category-gre-quant-2","category-gre-strategies","category-how-to-study","category-math-gre-strategies","category-study-tips-2","category-taking-the-gre-2","tag-graphs"],"_links":{"self":[{"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/posts\/11148","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/users\/160"}],"replies":[{"embeddable":true,"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/comments?post=11148"}],"version-history":[{"count":2,"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/posts\/11148\/revisions"}],"predecessor-version":[{"id":11153,"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/posts\/11148\/revisions\/11153"}],"wp:attachment":[{"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/media?parent=11148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/categories?post=11148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/tags?post=11148"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/www.manhattanprep.com\/gre\/wp-json\/wp\/v2\/yst_prominent_words?post=11148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}