1. Data Visualisation with Tableau ExcelR Solutions

2. What is Data Visualisation? ExcelR Solutions

3. What is Data Visualisation? Data visualization is visual representation or creation and study of the visually represented data Communicate information clearly and efficiently using Graphs, Plots, Statistical graphics etc. Numerical data may be encoded using dots, lines, or bars to visually communicate a quantitative message It makes complex data more accessible, understandable ExcelR Solutions

4. Have we experienced visualised data earlier? ExcelR Solutions

10. John_Snow_choleraData Visualisation

11. What is Data? How is it generated? ExcelR Solutions

15. Importance of Visualizing Data Visualizations casts data into a format that can be easily grasped and understood much more quickly and easily than the raw number alone. Visualization is that it allows us access to huge amounts of data in ways that would not be otherwise possible. Visualizations allows to access more actionable insights. Visualizations allows data to be presented both graphically and interactively. Visualizations are effective at conveying knowledge. 15

16. 500 million tweets every day, 1.3 billion accounts YouTube users upload 100 hours of video every minute 306 items are purchased every second 26.6 Million transactions per day 100 terabytes of data uploaded daily http://www.dnaindia.com/scitech/report-facebook-saw- one-billion-simultaneous-users-on-aug-24-2119428 Processing 100 petabytes a day (1 petabyte = 1000 terabytes) More than 1 million customer transactions every hour BIG DATA! https://www.techinasia.com/alibaba-crushes-records-brings-143-billion-singles-day