Question 2 (1 point) Which of the following is a required condition for a discrete probability function? O ER( x ) = 0 O Rx) 2 1 for all values of x ORx ) co O ER(x ) = 1 Question 3 (1 point) Which of the following is a characteristic of a binomial experiment? At least two outcomes are possible. The probability of success changes from trial to trial. O The trials are independent, The experiment consists of a sequence of different trials