A Normal Random Variable X Has an Unknown Mean

question 110

Short Answer

A normal random variable x has an unknown mean and standard deviation = 2.5. If the probability that x exceeds 7.5 is 0.8289, find .
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Definitions:

Selective Retention

The process by which individuals remember only the information that supports their beliefs or opinions, ignoring any contrary evidence.

Selective Analysis

A method of analyzing data or information where only certain aspects or variables are considered, often to support a specific hypothesis or outcome.

Subliminal Perception

The processing of information by the brain that occurs below the level of conscious awareness.

Federal Communications Commission

A U.S. government agency responsible for regulating interstate and international communications via radio, television, wire, satellite, and cable.