Vucauuu W '1\"! Illnl na Altar Banking Co. is studying for the number of times its automatic teller, located in a Loblaws supermarket. is used each day. The following is the number of times it was used during each of the last 10 days. a) Using the data below, construct a stem-and leaf display. (2 marks) b) Construct a frequency distribution by: (2.5 marks) 0 Using the 2k rule to determine the number of classes. I Determining the class width. 0 Using 69 as your lower class limit of the rst class. mm Question 5 11 marks Using the data in question 4, a) Calculate the sample mean. (1 mark) b) Determine the median. (1 mark) c) Determine the mode. (1 mark) d) Calculate the range. (1 mark) e) Calculate the sample variance. (1 mark) f) Determine the sample standard deviation (1 mark) 9) Calculate the coefficient of variation. (1 mark) h) Determine the rst quartile. third quartile and inter-quartile range (3 marks) i) Use the Empirical Rule and estimate the range that includes 68% of the number of appointments made. (1 mark)