Which of the following is correct about a probability distribution?
A) The sum of all possible outcomes must equal 1.0.
B) The 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 of the options A, B and C are correct statements about a probability distribution. The sum of all possible outcomes must equal 1, as the total probability of all possible events is always 1. The outcomes must be mutually exclusive as they should be distinct events, and the probability of each outcome must be between 0 and 1 inclusive as probability cannot be negative or greater than 1. Therefore, all the statements are correct and the answer is D.

Which of the Following Is Correct About a Probability Distribution