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Chart Type                                           Example
                 Bar Chart: A bar chart represents the data in horizontal
                 columns. The measurement of values are organised
                 horizontally. Stacked bar chart is  a variation  of bar
                 charts.









                 Pie  Chart: A pie chart represents  the data or value
                 of  each  item  in proportion  or  percentage  to  the
                 consolidated or  sum value of all items. Pie chart
                 displays single type of data item and is beneficial when
                 the  user  wants  to  emphasise  value  of  a  significant
                 item. Pie charts are use to compare how each value
                 relates proportionally to the whole.



                   X-Y (Scatter) Chart: X-Y (Scatter) chart displays the
                 relationships among the  numeric values  of several
                 data  series. This chart shows uneven intervals or
                 clusters of data and is commonly used to represent
                 scientific data.







                 Area Chart: An area  chart is  a  version of a  line or
                 column graph. It is useful to emphasise the volume of
                 changes of data. Area charts have better visual impact
                 than a line chart.









                 Components of a Chart

                 A chart typically consists of the following components:
                 X-Axis            It is the horizontal axis known as the category axis.

                 Y-Axis            It is the vertical axis and is known as the value axis.
                                   The X and Y axis divides the X-Y plane into four quadrants.
                 Data series       It is the set of values that the user wants to plot in the chart.
                 Chart Area        It refers to the total area surrounded in the chart.
                 Chart Title       It is the heading text that helps to identify the chart.



                                                           Create and Insert Different Types of Charts in a Spreadsheet  253
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