Consider the following statements: i. The sum of the probabilities of collectively exhaustive events must equal one. ii. An event and its complement are mutually exclusive. ifi.Given that Z is a standard normal random variable, P(Z - 1.25) -P(Z - -1.25) - 0.3944 iv.For any symmetric distribution, the mean, median, and mode will have the same value. Which of the following is correct about the statements? A (ii) is true. B (ili) and (iv) are true. C (i) and (ii) are true. D (i) is true E None of the suggested answers are correct, Which of the following is true? Points: 2.5 The probabilities of mutually exclusive events which are collectively exhaustive sum to one. B The sum of the probabilities of collectively exhaustive events must equal one. An event and its complement are sometimes mutually exclusive. D If A and B are mutually exclusive, then A and B must be mutually exclusive. E None of the suggested answers are correct