On a Data-Flow Diagram, You May

question 87

Multiple Choice

On a data-flow diagram, you may:

• A) repeat data stores and processes.
• B) repeat sources/sinks and processes.
• C) only repeat processes.
• D) repeat relationships.
• E) repeat both data stores and sources/sinks.

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Definitions:

Plot Residuals

A graphical representation used in statistics to show the difference between observed and predicted values given by a model.

Normality

A statistical assumption that a dataset follows a normal distribution, characterized by a symmetrical bell-shaped curve.

Residuals

Residuals are the differences between observed and predicted values in a statistical model, reflecting the discrepancy in predictions.

Variance

A measure of the spread or dispersion of a set of data points, calculated as the average of the squared differences from the mean.