In X-Ray Crystallography

question 19

Multiple Choice

In x-ray crystallography

• A)x-ray density maps are used to calculate structure.
• B)diffraction patterns are generated from crystal structure of molecules.
• C)x-ray is used because of its short wavelength.
• D)x-ray density maps are used to calculate structure and diffraction patterns are generated from crystal structure of molecules only.
• E)x-ray density maps are used to calculate structure,diffraction patterns are generated from a crystal structure of a molecule and x-ray is used because of its short wavelength.

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Definitions:

Total Variation

The overall measure of the spread or dispersion of a set of data points.

Degrees of Freedom

In statistical analysis, it refers to the number of independent values or quantities which can be assigned to a statistical distribution.

Coefficient of Determination

A statistic that indicates the proportion of the variance in the dependent variable that is predictable from the independent variables.

Total Variation

The overall measure of variability within a dataset, representing the sum of squared differences from the mean.