Given the Least Squares Regression Line $\hat { y } = 5 - 2 x$

question 147

Multiple Choice

Given the least squares regression line $\hat { y } = 5 - 2 x$ :

• A) the relationship between x and y is positive.
• B) the relationship between x and y is negative.
• C) as x decreases,so does y.
• D) None of these choices.

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Definitions:

Polygraph

A machine used to detect and record changes in physiological processes such as heart rate, breathing, and perspiration, often used in lie detection.

Physiological Measurement

The process of recording biological activities, such as heart rate or brain activity, often used in psychological research to assess responses.

Lie-Detector Test

A technique that attempts to determine if someone is lying by measuring physiological responses, such as blood pressure, pulse, and skin conductivity.

Genetics

The branch of biology that studies genes, heredity, and genetic variation in living organisms.