In the maths coursework we have been set, we have been asked to use information provided to investigate what influence the price of a second hand car.

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Maths coursework

In the maths coursework we have been set, we have been asked to use information provided to investigate what influence the price of a second hand car. The information contains different makes, models, and price when new, price when old, and engine size, fuel, MPG, mileage, service and owners on 100 cars.

During the coursework I will be investigating: -

Introduction:

As part of my GCSE Maths coursework, I have been asked to investigate how the price of a car drops over a certain period of time, depending on certain factors. The cars I will be looking at will be second hand, all the data on these cars will be given to me by my class teacher. I will use the data from this database and compare the data using different methods and calculate how the price of the car drops by each of the certain factors.

Aim:

As part of my coursework I will gather and collect the data I will require from the database on the cars that will be using in my investigation. I will use this data then and place them into tables and then later on draw them into graphs, which I will then use to calculate how the price of the cars drop depending on the certain factors. I will use graphs such as bar graphs, pie charts and even scatter diagram to present my data. I will also use methods such as finding the average of the prices and ages of the cars and the cumulative frequency of the data that I will collect from the database on the cars.

In the coursework I have to use the data which is related to one another, and when the data is compared, the outcome will show how the price varies due to the different factors.

Plan:

In the coursework I will collect the data from the database; I will then place them in a table and then use the data from this table to calculate the way in which the factors will affect the price of the car and by how much.

The first thing I will be doing in the coursework will be finding out the mean, mode, median and range.

Mean-the total of the distribution/number of values

Median- the median of a distribution is the value in the middle when the values are arranged in order

Mode-the value occurs the most

Range- the largest subtract the smallest

I found the mean for the new prices for the ford cars, I noted down all the prices then divided by the number of values.

Ford (new)

                  £8785, £7310, £7875, £9105, £12125, £11800, £8680, £14505, £13230, £13183, £17780, £6590, £15405, £9995, £8748/15

The mean for the new ford cars is £14610.73 correct to 2 decimal places

Median

               £6590, £7310, £7875, £8680, £8748, £8785, £9105, £9995, £11800, £12125, £13183, £13230, £14505, £15405, £17780.

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The median is in between £9995 and £11800, so to get the correct figure the two number will be added together and divided by two as there only two number.

£9995 + £11800/2= £10897.5

Mode

 There was no most occurring value, this is probably because the items being sold are cars and cannot be the same price also the price varies on how old the car is.

Range

 The highest value of a car is £17780 and the lowest price of a car is £6590, this will be subtracted to give the range

£17780-£6590, =£11190

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