What Are the Two Key Properties of a Discrete Probability

question 132

Multiple Choice

What are the two key properties of a discrete probability distribution?

• A) 0 ≤ P(X = x) ≤1 and ∑P(X = x_i ) = 0
• B) 0 ≤ P(X = x) ≤1 and ∑P(X = x_i ) = 1
• C) -1 ≤ P(X = x) ≤1 and ∑P(X = x_i ) = 1
• D) -1 ≤ P(X = x) ≤1 and ∑P(X = x_i ) = 0

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Definitions:

Group Dynamics

The study of the behavior, interactions, and psychological processes that occur within a social group.

Risky Shift

The phenomenon where groups tend to make riskier decisions together than individuals would make on their own.

Polarization

The process or phenomenon through which opinions, attitudes, or behaviors become increasingly extreme or divided.

Groupthink

A psychological phenomenon occurring within a group of people, where the desire for harmony or conformity results in an irrational or dysfunctional decision-making outcome.