B. The following histogram is representing marks obtained by 50 students of a class. 15- 15 12 12- 9 No. of students 0 9.5 20.5 30.5 40.5 50.5 60.5 70.5 80.5 Marks - 1. Arrange the data in distribution frequency table 2. Find mean, median, and mode 3. Find Q1, Q2, Q3 4. Find Standard deviation and variance of the data Construct cumulative frequency table ( fks and fk2) 6. Construct the ogive negative and positive of the data 7. Construct the polygon of the data 8. Construct the Box and Whisker Plots and Stem and Leaf Plot of the data