What System Includes Data Conferencing and Videoconferencing

question 34

Multiple Choice

What system includes data conferencing and videoconferencing?

• A) Electronic communication systems
• B) Electronic conferencing
• C) Group systems
• D) Data communication networks
• E) Data mining

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Definitions:

Area

A measure of the extent of a two-dimensional surface or shape, expressed in square units.

F-distribution

A probability distribution that arises in the testing of whether two population variances are equal.

Testing

The process of using statistical methods to determine if there is enough evidence to reject a given hypothesis about a data set.

Z-test

A statistical test used to determine whether there is a significant difference between the mean of a sample and the mean of a population, or between the means of two samples, assuming a normal distribution.