December 11, 2020

# the graphical representation of numerical data is called

Each column and row of data … Mark off the class intervals in the X-axis. Content Filtrations 6. Ogive is a cumulative frequency graphs drawn on natural scale to determine the values of certain factors like median, Quartile, Percentile etc. The box containing the row number to the left of the row in a worksheet. 1. In this process to adjust the frequencies we take a series of ‘moving’ or ‘running’ averages. Now calculate the midpoint of the class interval. It is easy to understand and it is one of the most important learning strategies. Graphical representation can be used for both the educated section and uneducated section of the society. Intersection of a row and column. Disclaimer 9. The graphical representation is the visual display of data using plots and charts. relationships in the data. of lowest value. 2. ), bar graphs (also called frequency diagrams) are more appropriate for grouped discrete data or for categorical data. Before plotting the graph we have to convert the c.i. The graphical representation methods are classified into some classes according to the target sequences and the dimension of the representation space. Let us discuss how to draw a frequency polygon: Draw a horizontal line at the bottom of graph paper named ‘OX’ axis. pictograph, bar graph, histogram,etc. Our eyes are drawn to colors and patterns. To obtain the frequency polygon ABCDEFGHIJ, draw the line segments AB, BC, CD, DE, EF, FG, GH, HI, IJ, and connect all the points. Required fields are marked *, General Rules for Graphical Representation of Data. To plot this graph first we have to convert, the class intervals into their exact limits. Your email address will not be published. There are different types of graphical representation. Data visualization is one of the steps in analyzing data and presenting it to users. a _____ _____ a folder that you and others can access to open, modify, and review presentation slides. A graphical representation of numerical data contained in a corresponding WORKSHEET. Ogive is useful to determine the number of students below and above a particular score. When two or more distributions are to be compared the frequency polygon is used. Ø Bar diagram is also called as bar chart. Ø Bars … To communicate information clearly and efficiently, data visualization uses statistical graphics, plots, information graphics and other tools. 2. It makes the comparison of data more efficient. Then we have to calculate the cumulative frequencies of the distribution. 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