Question: 14 Assume that X is a discrete random variable as follows: ???? ????(????) 10 0.15 15 0.42 17 0.25 21 0.05 35 0.13 Which of

14 Assume that X is a discrete random variable as follows: ???? ????(????) 10 0.15 15 0.42 17 0.25 21 0.05 35 0.13 Which of the following statements is/are correct? a The expected value of X = 17.65 (rounded to 2 decimals) b The requirement holds that ????(????) = 1 c The standard error of X = 7.18 (rounded to 2 decimals) [1] a [2] b and c [3] a and c [4] a, b and c [5] Not [1], [2], [3] or [4]

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