IQ Scores Form a Normal Distribution with µ = 100

question 8

Multiple Choice

IQ scores form a normal distribution with µ = 100 and σ = 15.Individuals with IQs above 140 are classified in the genius category.What proportion of the population consists of geniuses?

• A)0.9962
• B)0.5038
• C)0.4962
• D)0.0038

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Definitions:

Continental Rift

A linear zone where the Earth's crust and lithosphere are being pulled apart and is the site of potential volcanic activity and new oceanic crust formation.

Contact Metamorphism

A process where rocks are altered due to heat and chemical fluids from nearby magma.

Normal Faults

Fractures in the Earth's crust where rock layers have moved vertically relative to each other due to extensional forces.

Shearing

The deformation of a material by slippage along parallel planes, often associated with faults and seismic activity in the Earth's crust.