The final grades of 80 mathematics students are recorded in the following table: 68 73 61 66 96 79 65 86 84 79 65 78 78 62 80 67 75 88 75 82 89 67 73 73 82 73 87 75 61 97 57 81 68 60 74 94 75 78 88 72 90 93 62 77 95 85 78 63 62 71 95 69 60 76 62 76 88 59 78 74 79 65 76 75 76 85 63 68 83 71 53 85 93 75 72 60 71 75 74 77 a)  Create a Histogram and describe it. b)  Find the lowest grade. c)  Find the highest grade. d)  Find the sample mean or average. e)  Find the median. f)  Calculate the standard deviation. g)  Show the Five Number Summary h)  Create the appropriate graph to show the 5 number summary.