The Probability Density Function F(x) of a Random Variable X

question 90

Multiple Choice

The probability density function f(x) of a random variable X that is normally distributed is completely determined once the:

• A) mean and median of X are specified
• B) median and mode of X are specified
• C) mean and mode of X are specified
• D) mean and standard deviation of X are specified
• E) mode and standard deviation of X are specified

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Definitions:

North America

A continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere.

Aquatic Ecosystems

Water-based environments—including oceans, lakes, rivers, and wetlands—that support a diverse range of life through complex interrelationships.

Mosses

Small, non-vascular plants that typically form dense green clumps or mats, often in damp or shady locations.

Lichens

Symbiotic associations between a fungus and a photosynthetic partner, usually an algae or cyanobacteria, which live together as a single, unique organism.