Zheng and Glenn Are Talking About How You Can Tell

question 8

Multiple Choice

Zheng and Glenn are talking about how you can tell if another person likes you.Given your knowledge of sensory systems, you could suggest that they look at whether that person

• A)turns down the corners of her mouth.
• B)has enlarged pupils.
• C)gives off a subtle odor.
• D)starts to speak more softly.

---

Definitions:

Independent Variable

A variable in a scientific experiment that is manipulated or changed to test its effects on the dependent variable.

Coefficient of Correlation

A numerical measure that indicates the strength and direction of a linear relationship between two variables.

Coefficient of Variation

A measure of relative variability computed as the ratio of the standard deviation to the mean, often expressed as a percentage.

Covariance

A measure indicating the extent to which two variables change together, signifying the direction of their linear relationship.