Question

What is mean of value of probability?​

Answer 1

Sum of probabilities of all elementaryevents is 1.

Example-

For events A, B, C;

P(A) + P(B)+ P(C) = 1

Answer 2

Answer:

The mean of a probability distribution is the long-run arithmetic average value of a random variable having that distribution. In this context, it is also known as the expected value.

Step-by-step explanation:

Probability distributions indicate the likelihood of an event or outcome. ... p(x) = the likelihood that random variable takes a specific value of x. The sum of all probabilities for all possible values must equal 1. Furthermore, the probability for a particular value or range of values must be between 0 and 1.