Which of the Following Is True of Correlations

question 23

Multiple Choice

Which of the following is true of correlations?

• A)They cannot be used to determine statistical significance.
• B)They provide the basis for transforming observations to scales.
• C)They are particularly useful with nominal scales.
• D)They describe the direction and magnitude of relationships between two variables.

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Definitions:

Hardy-Weinberg Predictions

Hardy-Weinberg predictions are mathematical expressions that describe the expected frequencies of genotypes in a population under certain conditions, including random mating and absence of evolutionary forces.

Genetic Equilibrium

A state in a gene pool where the frequency of alleles remains constant from generation to generation in the absence of evolutionary forces.

Natural Selection

The process by which organisms with traits better suited to their environment are more likely to survive and reproduce, gradually influencing the characteristics of their species.

Allele Frequency

The proportion of all copies of a gene in a population that are of a given allele variant.