QUESTION 1 (20 MARKS) i, 100 number of students in a school. according to the age, who read the Women's Weekly magazine during the first week of May 2022 is indicated in table below. Age (year) Number of Students 10- 2 12- 12 14- 30 16- 50 18- 70 20- 100 (a) Construct a histogram [2 marks] (b) Estimate the standard deviation and coefficient of variation [5 marks] (c) Find the 85th percentile. [3 marks] ii. In a public speaking competition. 7 out of the 11 contestants are females. Find the number of ways of choosing (a) Three winners for the first place, second place and the third place [3 marks] (b) Four winners consisting of at least two females [3 marks] (c) Two female and one male winners for the first place, the second place and the third place [4 marks]