Question

) Sum of all possible probabilit​

Answer 1

Answer:

The sum of possible outcomes is always 1.

P(E) + P(not E) = 1.

Answer 2

Answer:

The sum of the probabilities of all possibilities must equal 1 . Some outcome must occur on every trial, and the sum of all probabilities is 100%, or in this case, 1 . ... If two events have no outcomes in common, the probability that one or the other occurs is the sum of their individual probabilities.