Which of the Below Represents a Reason Why Data Warehouses

question 82

Multiple Choice

Which of the below represents a reason why data warehouses were created?

• A)Numbers and types of operational databases increased as businesses grew
• B)Many companies had information scattered across multiple systems with different formats
• C)Completing reporting requests from numerous operational systems took days or weeks
• D)All of the above

---

Definitions:

Coefficient Of Determination

A statistical measurement that assesses the proportion of the variance in the dependent variable that is predictable from the independent variable(s).

SST

Abbreviation for "Total Sum of Squares," which measures the total variance in a dataset.

SSE

Total of the squared differences between the actual data and the estimated values from a model, illustrating model accuracy.

Coefficient Of Determination

A statistical measure represented as R², which indicates the proportion of the variance in the dependent variable that is predictable from the independent variable(s).