The Core (Inner and Outer)of Earth Extends Over What Fraction

question 142

Multiple Choice

The core (inner and outer) of Earth extends over what fraction of its radius?

• A) almost 80%
• B) roughly 65%
• C) less than 10%
• D) about 5%

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Definitions:

Diversification

An investment strategy that reduces risk by allocating investments among various financial instruments, industries, or other categories.

Negatively Correlated

A relationship between two variables in which one variable increases as the other decreases.

Expected Value

A calculation in statistics that quantifies the average outcome of a random event over a large number of occurrences.

Mean

The average value of a set of numbers, calculated by dividing the sum of all values by the number of values.