Which of the following is NOT a true statement? o a. The sum of all probabilities in a probability distribution is always equal to one. O b. Random variables can have more than one value. O . The probability of the value of a random variable can never be zero. o d. The value of a random variable could be zero. Which formula gives the probability distribution shown in the table below? Probablity Distributlo x 1 2 3 P(x) 1/6 1/3 1/3 o a. (x)=1/x O b. P(x)=1/6 O c. P(x)=x/6 o d. P(x)=6/x

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