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Practical Questions

 Practcal Exam Questions of Data Visualization using Power BI 1. Students Data, display subject and marks in Pie chart. Student Name Subject Marks Aditi Math 85 Aditi Science 78 Rahul Math 90 Rahul Science 88 Sneha Math 70 Sneha Science 75 2. Sales Data, Display Category and sales amount in Funnel chart. Product Category Sales Amount Pen Stationery 100 Pencil Stationery 80 Notebook Stationery 200 Chips Snacks 150 Biscuits Snacks 120 Juice Drinks 180 3. Add extra column in Table of Question 2. Column name Total sales, It should contains sum of all amo...
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Practical Example Using Power BI

POWER BI  Open Power BI  Interface First interface contains some data source connections and one blank report. After clicking on blank report the actual interface of Power BI will open. In that : Left side: Report view: Create dashboard Table view: Display data tables. Model view: Create relationships. DAX Queries: Write queries here. Top part: Called ribon contains different features related to visuals. Bottom part:  Contain two views first is desktop another is mobile. And other things are pages as like sheets from excel. Right part: It is called pane. Three pane: Data: It shous data reated part. Visualization: It shows different visuals, graphs. Filter: Apply some filters to data. Practical Example --- Retail Sales Dashboard using Power BI --- Sheet1: Sales_Data Order_ID Product Region Quantity Price Date Customer_ID 101 Laptop North 2 50000 01-0...
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Visualization Tools and Data Storytelling

UNIT II Visualization Tools and Data Storytelling 1. Overview of Visualization Tools Visualization tools are software applications used to convert raw data into charts, graphs, dashboards, and interactive visual reports so that users can easily understand patterns, trends, and insights. Why Visualization Tools Are Important • They make complex data easy to understand • Help in decision making • Allow interactive dashboards • Useful in business analytics and research • Save time compared to manual chart creation Example • Raw Data → Excel sheet with 10,000 rows • Visualization → Sales dashboard showing trends instantly a) Microsoft Excel for Data Visualization Excel is a spreadsheet software used for data storage, analysis, and visualization. Visualization Features in Excel • Bar Chart • Line Chart • Pie Chart • Histogram • Scatter Plot • Pivot Charts Advantages • Easy to learn • Available in most organizations • Good for small datasets Limita...
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