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b) TABLE 3 represents the probability distribution of a school day trip voting to Penang Island by the parents. The voting is measured on a 5-point scale (1 = strongly disagree, 2 = disagree, 3 = neutral, 4 = agree and 5 = strongly agree). TABLE 3: Probability distribution of school day trip voting Voting Scale (x) _ i. What is the expected value of the voting scale for a school day trip to Penang Island? (2 marks) ii. Interpret the answer in part 2(b)i. (1 mark) iii. Compute the variance of the voting scale for a school day trip to Penang Island