Attempt the question below: Mean, Interquartile Range & Variance The marks obtained out of 25 by 30 students of a class in the examination are given below. 20, 6, 23, 19, 9, 14, 15, 3, 1, 12, 10, 20, 13, 3, 17, 10, 11, 6, 21, 9, 6, 10, 9, 4, 5, 1, 5, 11, 7, 24 (A) Represent the above data as a grouped frequency distribution table, taking the class intervals as 0 - 5, 6 - 11, 12 - 16 and so on. (5 marks) (B) Calculate: i. The median score (5 marks) ii. The variance and standard deviation and give an interpretation. (10 marks) TOTAL: 35 MARKS