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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