Mathematics · Probability Distributions
Consider the following statements regarding the probability distribution of a discrete random variable X: 1. The sum of all probabilities must equal 1. 2. Each probability P(X = x) must be non-negative. 3. The Cumulative Distribution Function F(x) = P(X ≤ x) is a non-decreasing step function. Which of the statements given above are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11, 2 and 3✓
- 22 and 3 only
- 31 and 3 only
- 41 and 2 only
Correct answer
1, 2 and 3
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