Give the function of the following types of charts: bar graph, line graph, pie chart and scatter chart.
Answer Text: -Bar graph-it is used to compare values at a given point in time.-Line graph-it is used when emphasizing trends and checking change of values over time.-Pie chart-it shows the relationship between parts of a whole for comparison.-Scatter chart-it is used as a diagnostic tool when looking for heavy occurrences or absences or absence of data.
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