When the data are classified according to categories.
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Bar charts are most useful for comparing discrete categories or groups of data. They are effective in displaying the distribution or relationship between different variables in a visually clear and concise manner.
A bar graph or pie chart are commonly used for survey results as they effectively display percentages or frequencies of responses. Bar graphs are useful for comparing data between different categories, while pie charts are helpful for showing the composition of the whole in terms of parts.
To create a bar graph in Microsoft Excel, select the data you want to include in the chart. Then, go to the "Insert" tab, click on "Bar Chart" icon, and choose the desired bar chart type. Excel will automatically generate a bar graph based on the selected data.
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Surveys are a way to collect data from a sample population by asking a series of questions. Tally charts are a way to organize and represent data by using tally marks to keep track of the frequency of specific responses or observations.
Experimental diagram design involves creating visuals and graphics to represent experimental data to help analysts and stakeholders understand key findings and patterns. These diagrams can include flowcharts, bar graphs, pie charts, and other visual representations to communicate complex information in a clear and concise manner.