atistics CS The following data set represents the scores of students on a quiz. [2 2, 5, 9, 10, 11, 12, 13, 16, 17, 19, 19] a) Calculate the percentile rank of a student who scored 8, using the formula k # of values less than a x 100 % total # of values A score of 8 represents the Number th percentile b) Using the given formula, determine the data value that represents the 65 th percentile i = k 100 (n + 1) 65 th percentile is: Number