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Data handling In this coursework I will investigate the factors that affect the depreciation of a car, I will randomly choose 35 cars out of 100 and see what affects it. I will use the factor age to see if it affects the depreciation of the amount the car is valued. I will then put the results on a scatter graph and see what type of correlation there is. The reason why I will use a scatter graph is because it will be easier to read and find a pattern. I will also use the box and whisker method. If I am right I will be able to work out how much the percentage depreciation has increased as age increases. I will only choose 35 because there is no need to do all of them and this will give me an average so I can estimate the rest. No. Name of car Age...

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