Question 11 (Mandatory] (2 points) Heights (in meters) of trees in an experiment are given below. 4.1 25 4.5 3.6 28 5.1 29 5.1 12 1.6 Find the mode. 2.8 5.1 41 3.6 05.5 Question 12 [Mandatory) (4 points) The waiting times for a sample of patients at a clinic are given below. 42 54 58 62 47 77 77 85 93 100 Find the standard deviation. 17.3 31.82 21.3 18.2 22.4 Question 13 (Mandatory) (3 points) The waiting times of patients at a clinic are given below. 42 54 50 62 67 77 77 85 93 100 Find the median. 715 645 77 72 67 Question 14 [Mandatory) (2 points) The data below give the blood pressure measurements of 7 patients at a clinic. 138 120 135 140 120 125 120 Find the range. 130 120 OO