The Standard Deviation for a Random Variable with Probability Density

question 13

Multiple Choice

The standard deviation for a random variable with probability density function f and mean µ is defined . Find the standard deviation for an exponential density function with mean .

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Definitions:

Modernization Theory

A view of globalization in which global development is a worldwide process affecting nearly all societies that have been touched by technological change.

Max Weber

A German sociologist, philosopher, and political economist known for his theory on the Protestant ethic and his ideas on bureaucracy.

World Systems Theory

A multidisciplinary, macro-scale approach to world history and social change that suggests there is a world economic system in which some countries benefit while others are exploited.

Dependency Theory

The global theory maintaining that industrialized nations hold less-industrialized nations in a dependent relationship that benefits the industrialized nations at the expense of the less-industrialized ones.