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5) Twenty Two students took a quiz. The following are the scores. 80 60 100 40 40 50 80 90 100 60 10 80 45 60 30 30 30 90 100 60 50 ?5 Find the following for the above sample (a-g: 2131.5) a. Mean: b. Median: 0. Mode: d. Standard Deviation: e. Variance: f. First quartile: g. Third Quartile: h. Find the 33th percentile. (4133) i. Find the percentile rank of the value 75. (4pm) j. Find the z-score for the value 30. Would it be unusual to get 30 on the quiz? Explain. (51:13) It. Construct a frequency distribution with 5 classes. Use 10 as lower class limit of the rst class. (5pm)