48. The probability distribution table of a discrete random variable lists: A) t

Question

48. The probability distribution table of a discrete random variable lists: A) the bottom half of the values that the random variable can assume and their B) all of the values that the random variable can assume and their corresponding C) all of the values that the random variable can assume and their corresponding D) the top half of the values that the random variable can assume and their corresponding probabilities probabilities frequencies corresponding frequencies 49. For a discrete random variable x, the probability of any value of x is: A) always greater than 1 B) always less than zero C) always in the range zero to 1 D) never greater than zero 50. For the probability distribution of a discrete random variable x, the sum of the probabilities of all values of x must be: A) equal to zero B) in the range zero to l C) equal to 0.5 D) equal to 1

Explanation / Answer

1. The probability distribution table of a discrete random variable lists - (B) all of the values that the random variable can assume and their corresponding probabilities.

2. For a discrete random variable x, the probabilityof any value of x is : (C) always in the range zero to 1.

3. For the probability distribution of a discrete random variable x, the sum of the probabiilities of all values of x must be : (D) equal to 1.

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