Question

Sum of all probablities =_____​

Answer 1

Answer:

sum of all probabilities=1

Answer 2

→Answer :

The sum of the probabilities of all possibilities must = 1 .

→Reason :

Some outcome must occur on every trial, and the sum of all probabilities is 100%, or in this case, 1 . This can be written as P(S)=1 P ( S ) = 1.