The Correlation Between X and Y

question 5

Multiple Choice

The correlation between X and Y

• A)cannot be negative since variances are always positive.
• B)is the covariance squared.
• C)can be calculated by dividing the covariance between X and Y by the product of the two standard deviations.
• D)is given by corr(X,
• Y)= .

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Definitions:

Self-fulfilling Prophecy

A belief or expectation that influences behavior in a way that causes the belief to become a reality.

Stereotype

A set of beliefs and expectations about members of a group that are held simply because of their membership in the group.

Multitasking

The ability to perform multiple tasks at the same time.

Processing Channel

Refers to the means by which information is encoded, stored, and retrieved by the cognitive system, often differentiated into verbal and nonverbal channels.