If R for Variables X and Y = Zero, Then

question 33

Multiple Choice

If r for variables X and Y = zero, then the.

• A)best prediction of Y is the mean of Y
• B)regression equation will predict Y exactly
• C)mean of X will be higher than the mean of Y
• D)Y-intercept is equal to 1.0

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Definitions:

Substances

Materials or items that can have a specific composition and properties, which can range from chemicals to drugs.

Transport

The movement of substances across distances or through cellular structures, such as the transport of nutrients across cell membranes.

Down Syndrome

Down Syndrome is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21, leading to developmental and intellectual delays.

Genetic Determinants

Factors encoded in an individual’s DNA that influence their traits, characteristics, and likelihood of developing certain diseases or conditions.