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It covers tables for organizing and comparing information, graphs for revealing trends and patterns such as demand curves, and multiple chart types including line, bar, pie, histogram, and component/pictogram formats. It also guides the construction of frequency distributions by defining range, choosing class intervals, tallying data, recording frequencies, and using the results for further graphing and pattern identification.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/basic-tools-of-economic-analysis-summary-and-examples/657372/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/basic-tools-of-economic-analysis-summary-and-examples/657372.png","ImageObject",300,407,{"name":92,"@type":93},"วิน","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-26",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the purpose of tables in economic analysis?","Question",{"text":112,"@type":113},"Tables systematically arrange data in rows and columns to organize and summarize information for easy comparison and understanding.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does plotting a table support economic interpretation?",{"text":117,"@type":113},"Plotting the table on a graph can reveal trends and patterns, such as a downward-sloping demand curve showing the inverse relationship between price and quantity demanded.",{"name":119,"@type":110,"acceptedAnswer":120},"What steps are used to construct a frequency distribution?",{"text":121,"@type":113},"Collect the data, find the range, decide the number of classes and class width, form class intervals, tally the data within each class, and record the frequencies for each interval.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},657372,1792978247,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":39},2336475104736,"https://ap-avatar.wpscdn.com/avatar/22000c4c5e0e5b17e70?x-image-process=image/resize,m_fixed,w_180,h_180&k=1786591360781797222","BASIC TOOLS OF ECONOMIC ANALYSIS  \nEconomics uses various tools to present, analyze, and interpret data. These tools help economists understand relationships between variables and make sound conclusions or predictions.  \ni. Graphs, Charts, and Tables with Relevant Examples  \n1. Tables  \nA table is a systematic arrangement of data in rows and columns.  \nIt is used to organize and summarize data for easy comparison and understanding. Example: Table showing price and quantity demanded of rice  \nPrice (₦) Quantity Demanded (kg)  \n100  \n150  \n200  \n250  \n300  \n50  \n40  \n30  \n20  \n10  \nUses of Tables:  \n• To organize raw data clearly  \n• To make comparison between variables  \n• To prepare data for graphs or charts  \n2. Graphs  \nA graph is a visual representation of data showing the relationship between two or more variables.  \nGraphs help to easily identify trends and patterns.  \nExample: Demand Curve  \nPlotting the above table on a graph gives a downward-sloping demand curve, showing the inverse relationship between price and quantity demanded.  \nTypes of Graphs:  \n1. Line Graph: Uses lines to show changes over time or relationship between variables.  \n2. Bar Graph: Uses rectangular bars to compare quantities.  \n3. Pie Chart: Uses a circle divided into sectors to show proportion or percentage of a whole.  \n4. Histogram: Used for continuous data, showing frequencies with adjacent bars.  \n3. Charts  \nCharts are diagrams that present statistical information in an attractive and easy-tounderstand form.  \nThey summarize complex data for quick understanding.  \nCommon Types of Charts:  \n• Bar Chart: Compares data using bars of equal width but different lengths. Example: Comparing GDP of different countries.  \n• Pie Chart: Shows how a total is divided into parts or sectors.  \nExample: Distribution of national expenditure on health, education, defense, etc.  \n• Component Bar Chart: Shows how each total is made up of different components.  \n• Pictogram: Uses pictures or symbols to represent quantities.  \nExample: Pie Chart showing national expenditure  \nIf total expenditure = ₦100 million  \n• Education – 30%  \n• Health – 25%  \n• Agriculture – 20%  \n• Defense – 15%  \n• Others – 10%  \nEach percentage can be converted to degrees in a circle:  \nDegree = Percen􀫚􀫙t􀫙age × 􀫜􀫟􀫙  \nSo, Education = (30/100) × 360 = 108°  \nii. Construction of Frequency Distribution  \nA frequency distribution is a table showing how often (frequency) each value or range of values (class) occurs in a dataset.  \nSteps in Constructing a Frequency Distribution:  \n1. Collect the data: Example – marks of students in an economics test. 25, 40, 45, 30, 60, 55, 50, 35, 70, 65  \n2. Find the range:  \nRange = Highest score – Lowest score = 70 – 25 = 45  \n3. Decide the number of classes: Usually between 5 and 10. Suppose we use class width = 10.  \n4. Form class intervals:  \n20–29, 30–39, 40–49, 50–59, 60–69, 70–79  \n5. Tally the data: Count how many scores fall in each class.  \n6. Record frequencies: Write the total for each class.  \nExample: Frequency Distribution Table  \nClass Interval Tally Frequency  \n20–29  \n30–39  \n40–49  \n50–59  \n60–69  \n70–79  \nTotal 10  \nUses of Frequency Distribution:  \n• To summarize large data sets  \n• To prepare for graphs such as histograms or frequency polygons  \n• To identify patterns such as central tendency and spread","cbCaiow3IuYY8NYm","https://ap.wps.com/l/cbCaiow3IuYY8NYm","pdf",196885,"English","# Graphs, Charts, and Tables with Relevant Examples\n## Tables\n## Graphs\n## Charts\n# Construction of Frequency Distribution","[{\"question\":\"What is the purpose of tables in economic analysis?\",\"answer\":\"Tables systematically arrange data in rows and columns to organize and summarize information for easy comparison and understanding.\"},{\"question\":\"How does plotting a table support economic interpretation?\",\"answer\":\"Plotting the table on a graph can reveal trends and patterns, such as a downward-sloping demand curve showing the inverse relationship between price and quantity demanded.\"},{\"question\":\"What steps are used to construct a frequency distribution?\",\"answer\":\"Collect the data, find the range, decide the number of classes and class width, form class intervals, tally the data within each class, and record the frequencies for each interval.\"}]","BASIC TOOLS OF ECONOMIC ANALYSIS - Summary and Examples | PDF"]