A Data Flow Diagram (Or DFD)has Four Basic Elements

question 5

Multiple Choice

A data flow diagram (or DFD) has four basic elements.The people and organizations that send data to and receive data from the system are known as

• A)data sources and destinations.
• B)data flows.
• C)transformation processes.
• D)data stores.

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Definitions:

Confidence Interval

A range of values, derived from a dataset, that is used to estimate the likelihood of containing the true mean or proportion of the whole population.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution, typically influencing the shape of the distribution.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the value of an unknown population parameter.

Confidence Interval

Various values, obtained from sample measures, that are likely to contain the essence of an unknown population parameter.