If X Is a Normal Random Variable with Mean 5

question 63

Multiple Choice

If X is a normal random variable with mean 5, and if the probability that X is more than 4.08 is .5910 (as shown below) , then what is the standard deviation of X? (Note: the diagram is not necessarily to scale.)

• A)4.00
• B)2.67
• C)2.00
• D)1.00

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Definitions:

Indigenous Peoples

Ethnic groups who are the original inhabitants of a given region or country, maintaining traditions that differentiate them from the dominant post-colonial cultures and societies.

Colonialism

The strategy of gaining complete or partial political dominance over another nation, settling it with inhabitants, and utilizing it for economic benefit.

Globalization

The process by which businesses or other organizations develop international influence or start operating on an international scale, leading to increased interconnectedness and interdependence among countries.

Neolithic Period

A phase in human history marked by the development of agriculture and permanent settlements, roughly beginning around 10,000 BCE.