Which of the following is correct about a probability distribution?
A)The sum of all possible outcomes must equal 1.0.
B)Outcomes must be mutually exclusive.
C)The probability of each outcome must be between 0.0 and 1.0 inclusive.
D)All apply.

Question

Quizplus · Accepted Answer

All the options are correct about a probability distribution. 
A) The sum of all possible outcomes must equal 1.0. This is because the probability of all possible outcomes must add up to 100% or the total probability space.
B) Outcomes must be mutually exclusive. This means that two events cannot happen at the same time, i.e., the occurrence of one event affects the occurrence of the other.
C) The probability of each outcome must be between 0.0 and 1.0 inclusive. This is because the probability of an event happening cannot be negative, and it cannot be greater than 1 because that would mean it's certain to happen.

Which of the Following Is Correct About a Probability Distribution