Of What Material Is the Core of Earth Composed

question 211

Multiple Choice

Of what material is the core of Earth composed?

• A) mostly iron
• B) roughly half rock and half iron
• C) titanium and nickel
• D) rock of similar composition to that in the crust, but much denser

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Definitions:

Predict

To declare or indicate a likely event or outcome in the future based on current evidence or patterns.

Null Hypothesis

A hypothesis that assumes no significant difference or relationship exists in the population from which a sample is drawn.

Multiple Regression Equation

A statistical technique that models the relationship between a dependent variable and two or more independent variables by fitting a linear equation to observed data.

Regression Coefficients

Regression coefficients are values that quantify the relationship between each independent variable and the dependent variable in a regression model.