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Suppose that about 85% of graduating students attend their graduation. A group of 21 graduating students is randomly chosen. Part (a) In words, define the Random Variable X. O the number of graduating students that are not attending graduation O the number of graduating students that attend graduation O the number of graduates O the number of people attending graduation Part (b) List the values that X may take on. O X = 1, 2, 3, . . ., 19, 20, 21 O X= 1, 2, 3, . . ., 83, 84, 85 O X = 0, 1, 2, . . ., 83, 84, 85 O X = 0, 1, 2, . . ., 19, 20, 21 Part (c) Give the distribution of X. X - Part (d) How many students are expected to attend their graduation? (Round your answer to the nearest whole number.) students