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The Analytical Puzzle: Profitable Data Warehousing, Business Intelligence and Analytics by David Haertzen

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Chapter 13 Number Crunching Part 1: Statistics

There are lies, damn lies and statistics.

Mark Twain

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 dataslicing 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 ...

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