Drawing Tools Click to fir OO Chart Blank Breaks Table LX Page Picture Shapes Icon Library Chart Library WPSArt # Screenshot Comment Envelopes Header and Page Footer Number (CLO1:PLO1:C1)(CLO1:PLO2:C1) Question 2 (6 Marks) The speed of 19 cars was measured by a radar device on a city street. 37 23 22 38 43 54 35 26 48 28 25 42 52 31 30 41 45 29 37 (a) Construct a stem-and-leaf display for this dataset. (3 marks) (b) Use the scientific calculator to find the mean and standard deviation for this data. Thus, in this dataset. calculate the percentage of variation for