The type of Optical Fiber that is used normally to connect two buildings that are apart by several kilometers is called the Single-Mode Optical Fiber.
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What is a Single-Mode Optical Fiber
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In the field of fiber optic communication, the single-mode optical fiber (SMF) which is also known as the fundamental or mono-mode optical fiber is one that is designed with the ability to carry and transport only a single mode of light.
Learn more about types of Optical Fibers in the link below:
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It compares production numbers of one product to another.... hope this helps
The kind of variable in the responses “Democrat”, “Republican”, “Independent”, “Other”, and “No Response” is a categorical variable since the choices does not associate with any kind of unit.
Literally speaking, categorical variables are variables that fall into a specific category. Categorical variable is also known as qualitative variable.
