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Which of the Following Is a Real-Time Internet Communications Service

question 118

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Which of the following is a real-time Internet communications service that notifies users when one or more people are online and then allows them to exchange messages or files or join a private chat room?


Definitions:

Probability Notation

The standard symbols and formulations used to represent probabilities in mathematical expressions.

Conditional Probability

The chance of a specific event occurring, conditional on the occurrence of another event beforehand.

Intersection

The point or set of points where two or more objects or sets, such as lines or sets in mathematics, meet or overlap.

Events A And B

Refers to two occurrences in probability and statistics that can be analyzed for their individual or joint likelihood.

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