Refer to the Above Table

question 17

Multiple Choice

Refer to the above table. Use charge balance to determine the value of x in the pyroxene
Ca_x(SiO₃) ₂.

• A) 2
• B) 1
• C) 4
• D) 6
• E) 3

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Definitions:

Coefficient Of Determination

A statistic used in the context of predictive models that represents the proportion of variance in the dependent variable predictable from the independent variable(s), usually denoted as R².

Variation

The measure of the spread or distribution of a set of data points.

Standard Error Of Estimate

A measure that indicates the accuracy of predictions made in a regression analysis; it reflects the typical distance between observed and predicted values.

Coefficient Of Correlation

An analytical measure that identifies the strength and directionality of a linear relationship involving two factors.