Usually, graphs are used to present time series and frequency distributions. The reader should keep in mind that the purpose of this exercise is to demonstrate Graphical Representation of Data. 0000002545 00000 n GR helps to quantify, sort, and present data in a method that is understandable to a large variety of audiences. In this case the data can be plotted with respect to these two dimensions, thus giving a straightforward visual representation of what the data look like, instead of having a large mass of numbers to digest. In this article, we will look at the graphic presentation of data and information along with its merits, limitations, and types. Divide X-axis into 12 equal parts to represent 12 months. Use in the Notice Board: Such representation can be hanged in the notice board to quickly raise the attention of employees in any organization. Unit 1: Case Study: Graphical Representation of Data In this unit, you learned some basics statistical concepts about qualitative and quantitative graphical representation of data, measures of center and variation and measures of grouped data and position and outliers and the five-number summary and boxplots. With a number of major variables and a large number of test results, the drawing of families of curves provides an ideal means of both handling the data … Johann Heinrich Lambert was the only scientist in the eighteenth century to use graphs extensively. 0000000016 00000 n %%EOF It is a mathematical picture. 145 0 obj <> endobj Take an interval of 5 cm and mark it on Y-axis to plot rainfall data in cm. it is used in many academic and professional disciplines but most widely so in the field of mathamatics,medicine and the science. We use these representations in order to gain bet-ter insight and understanding of the problem we are studying - pictures can convey an overall message much better than a list of numbers. Module 6: Unit 3 Data representation57 Unit 3: Data representation Introduction to Unit 3 In this unit you will look at different ways to represent data in tables, charts, graphs and diagrams. Students who are in class 12th or preparing for any exam which is based on Class 12 Geography can refer NCERT Geography Practical Work In Geography Book for their preparation. Data visualization is an interdisciplinary field that deals with the graphic representation of data.It is a particularly efficient way of communicating when the data is numerous as for example a Time Series.From an academic point of view, this representation can be considered as a mapping between the original data (usually numerical) and graphic elements (for example, lines or points in a chart). HOoÚ@Åïû)öovö¯÷èÒR¥Í©ª*HDTlL+õÓwfmìr¨ÀfßüfÞýÅ(.ñãï¤ yz]íØÕl'ù¤fL¦¿ö¯ø³ëÈ®"üx|a´çq ø¿x. 163 0 obj<>stream (jÒÉø¤rjºQÎË/Íú¦sk{ÑÛ×?ON7`J`N`t +Ê`ìÀÀhÀ ¤lÌÀ¤ÀÀ r« °³³I +³aÍ1dà-r{(ö`Åð èiVÆÇ3~f @b±iv0ÈbbàòXø,.°8+P Êg²8²ì@Nf Í6j:P¤¨¤ ª$ÊÆÀf33p"Ègeàgà2ÃÅA:ÙÀæ¢Þà8g N`à]¤x%@ Ä`9 The purpose of a graph is a rapid visualization of a data set. Suitable scales are to be chosen for both x and y axes, so that the entire data can be presented in the graph sheet. The following are the problems of graphical representation of data or reports: 1. 12.15 Points for Discussion Correspondence analysis is an exploratory data analysis technique for the graphical display of contingency tables and multivariate categorical data. 9 Graphical Representation of Data < Back | Next > Although there are several fairly common ways to graphically display descriptive statistics we will primarily focus on two: The Histogram or the Bar Graph ; Stem and Leaf Plot; Example . 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