Question 1 The following is a set of 109 DMT 242 examination marks ordered for convenience: 11 11 12 13 14 16 17 18 20 6 21 21 23 24 25 25 25 25 26 26 27 27 28 28 28 29 29 29 30 31 31 32 32 32 33 33...

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Extracted text: Question 1 The following is a set of 109 DMT 242 examination marks ordered for convenience: 11 11 12 13 14 16 17 18 20 6 21 21 23 24 25 25 25 25 26 26 27 27 28 28 28 29 29 29 30 31 31 32 32 32 33 33 34 34 35 36 36 37 37 37 37 38 38 38 39 39 39 39 39 39 39 39 40 40 40 40 40 40 41 41 41 42 42 42 42 42 43 43 44 45 46 46 47 47 47 47 48 50 50 51 51 52 52 52 53 53 54 54 55 57 58 58 59 59 61 62 63 63 66 66 67 70 76 77 82 (a) Construct a cumulative frequency table with class width w = 10 , starting with 0. (b) Calculate the mean and variance, and explain the meaning of your calculated measures. (c) Establish the value of the mode and median of the grouped data in part (a). (d) Draw a Histogram and comment on the shape of the distribution.