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Maths Coursework: Aim: The aim of my investigation in this maths coursework is to investigate the used car sales. I will need to investigate on these variables: * The price of the cars * The age of the cars * The makes of the cars * The cost when new of the cars * The mileage of the cars * The engine sizes of the cars All the variables above are ratio variables (Numbers are used) except the makes of the cars, because that one is special and it's called nominal variables. I will first try to find out any links between the current price of the car and the other variables such as age, mileage, car engine size, and the make. After finding links, I will then attempt to progress the data in order to find out stronger links between variables and eventually I will try to find a general value or formula that can link them....

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