Data visualization professions highly recommend the use of pie charts in making presentations because they are useful in comparing relative sizes of areas. Group of answer choicesTrueFalse

What are pie charts best used for? Charting pies. Showing changes in data over time. Comparing categories as parts of the total data. Comparing large amounts of categories.

Understanding types of data visualisationSuppose you have to make a presentation to divide the budget for different departments namely sales, marketing and HR. Which of the following data visualisation tools would be most appropriate for the presentation?HistogramPie chartBar graphLine graph

When should you avoid using a pie chart for data visualization?When comparing expenses across different categories.When highlighting the breakdown of spending proportions within a category.When you need to emphasize the importance of a specific category.When there are only a few categories to represent.

a)Under what circumstances is a pie chart appropriate for data visualisation? [3]b)Explain any five (5) design principles for a dashboard [10]c)Describe and explain a line fitted scatter plot and the circumstances that permit such a chart [7]

When incorporating data visualizations into presentations, ensure:Omitting any explanations or context for your visuals.Complex and cluttered visuals with many colors.Clear and concise titles and labels for your charts.Using technical jargon that your audience may not understand.