Let the Random Variable X Represent the Number of Heads

question 138

Essay

Let the random variable x represent the number of heads in five flips of a coin. Construct a table describing the probability distribution, then find the mean and standard deviation.

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Definitions:

Self-Affirmation Theory

A psychological theory suggesting that individuals can maintain their self-integrity by focusing on important aspects of their self-concept, especially when faced with threats.

Representativeness Heuristic

A cognitive short-cut in which instances are assigned to categories or types on the basis of overall similarity or resemblance to the category.

Induced Compliance

A special case of cognitive dissonance: inconsistency is experienced when a person is persuaded to behave in a way that is contrary to an attitude.

Cognitive Dissonance

The psychological discomfort experienced by an individual who holds two or more contradictory beliefs, ideas, or values at the same time.