There are lies, damn lies and statistics.
When you have completed this chapter you will be able to:
• Understand and discuss basic statistics
• Understand and calculate mean, median, and mode
• Use statistics to describe data
• Appreciate the use of statistics for evaluation and prediction.
In Chapter 12, you became aware of business intelligence operations for exploring data – slicing and dicing, drilling down, and rolling up. In addition, you were introduced to BI tools. Now it is time to apply statistics, the branch of mathematics that helps ...