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  To make more presenting analysis

               Types of Graphs


               There are two types of graphs


                     Frequency Distribution Graphs
                     Time Series Graphs


               Frequency Distribution Graphs


               The most common forms of graphs of a frequency distribution are

                     Line Frequency Graph

                     Histogram
                     Frequency Polygon

                     Frequency Curve
                     Ogive or Cumulative Frequency Curve


               Line Frequency Graph – Used for Discrete Series where variables are measured on
               the X – axis and frequency on the Y -axis.


               Example :Draw a Line frequency graph of the following data:


               Marks                 10      20     30      40      50      60     70
               Frequency              3       7      9      11      12      14     15





               ANSWER:The given data can be represented with the help of a

               line frequency graph as follows:
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