Television Uses Three Types of Modulation

question 36

Multiple Choice

Television uses three types of modulation. The video portion uses ____.

• A) AM
• B) FM
• C) DM
• D) PM

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Definitions:

Covariance

A measure indicating the extent to which two variables change together, revealing whether an increase in one variable tends to be accompanied by an increase (positive covariance) or decrease (negative covariance) in the other.

Distribution

In statistics, a distribution is a function that shows the possible values for a variable and how often they occur.

Correlation Coefficient

A numerical index that gauges the intensity and orientation of the linkage between a pair of variables.

Scatter Diagram

A graphical representation that displays the relationship between two quantitative variables using Cartesian coordinates to display values for typically a set of data.