COGNITIVE ASSESSMENT What Was the Original Purpose of a Screen

question 106

Multiple Choice

COGNITIVE ASSESSMENT What was the original purpose of a screen saver?

• A) to prevent images from being permanently etched on a monitor's screen
• B) to protect a computer by requiring a password to deactivate it
• C) to prevent access by hackers and avoid viruses
• D) to save energy by reducing the monitor activity

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Definitions:

Probability Density Function

A mathematical function that describes the likelihood of different possible outcomes in a continuous random variable.

Exponential Distribution

A continuous probability distribution that is used to model the time between events in a Poisson point process.

Poisson Model

A statistical model used to predict the number of events occurring within a fixed interval of time or space, assuming events occur with a known constant rate and independently of the time since the last event.

Exponential Random Variable

A type of continuous random variable often used to model the time between events in a process with a constant rate.