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Maths Coursework Handling Data for Mayfield High School The Task The following data is provided. Year Group Number Of Boys Number Of Girls Total 7 151 131 282 8 145 125 270 9 118 143 261 10 106 94 200 11 84 86 170 Given the above data it is my task to develop a statistical investigation based upon different lines of enquiries. The lines of enquiries which I may choose to investigate are as follows: * The relationship between height and weight * The relationship between IQ and key stage 2 results. I have decided to investigate on height and weight. Collecting the data We first need to begin by taking a random sample of data. I collected a random sample of data for 30 boys and 30 girls as shown below in the table. BOYS GIRLS HEIGHT / m WEIGHT/ kg HEIGHT/ m WEIGHT/ kg 1 1.67 66 1.83 60 2 1.72 63 1.63 44 3 1.80 60 1.73 50 4 1.32 54 1.69 51 5 1.62 56 1.61 54 6 1.69 50 1.70 50 7 1.68 50 1.75 60 8 1.80 72 1.68 48 9 1.85 73 1.58 54 10 1.75 68 1.74 39 11 1.67 60 160 48 12 1.86 80 1.61 45 13 1.62 92 1.63 38 14 1.70 62 1.70 60 15 1.52 38 1.62 54 16 1.72 64 1.56 38 17 1.61 42 1.65 54 18 1.73 50 1.69 46 19 1.70 72 1.52 48 20 1.80 62 1.54 65 21 1.71 57 1.67 52 22 1.85 73 1.73 64 23 1.67 50 1.52 38 24 1.61 47 1.57 48 25 1.62 51 1.60 48 26 2.00 86 1.75 56 27 1.50 35 1.60 45 28 1.62 48 1.73 48 29 1.65 50 1.55 50 30 1.84 76 1.76 56 A more useful representation of data Although I have collected a rather random sample of data, it is not really very useful to me, in the sense it is simply a series of numbers without much meaning. To help me gather a more useful representation...

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