Which of the following statements about a discrete random variable and its probability distribution are true?
A)Values of the random variable can never be negative.
B)Some negative values of f(x) are allowed as long as $\Sigma$f(x) = 1.
C)Values of f(x) must be greater than or equal to zero.
D)The values of f(x) increase to a maximum point and then decrease.

Question

Quizplus · Accepted Answer

The values of f(x), which represent probabilities, must be greater than or equal to zero because probabilities cannot be negative.

Which of the Following Statements About a Discrete Random Variable Σ\SigmaΣ

Which of the Following Statements About a Discrete Random Variable $\Sigma$