Measures of Central Tendency & Database Keys

Business Modeling- Measures of Central Tendency

Statistics- Measures of Central Tendency & Dispersion

Central tendency refers to a measurement that indicates where the middle of the data/information lies.The most common measures of central tendency are the mean, the median, and the mode. Dispersion means spread of data around the center. Standard deviation is a common measure of dispersion.

Excel- Descriptive Statistics

Learn how to calculate the measures of central tendency using Excel.

Database Management Systems- DB Keys

Primary Key

Foreign Key

Relationships between Tables

BA in Action

Practice Exercises