• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5
6. 6
6
7. 7
7
• Level: GCSE
• Subject: Maths
• Word count: 1655

# Maths Data Handling-Secondhand Car

Extracts from this document...

Introduction

Maths: Data Handling Coursework

Second Hand Car Sales

Introduction:

When selling a car, there are many factors that will affect the price of the car including:

Age, Mileage, Condition, Model, Engine size, Colour, Interior, Original Cost, Previous owners, Fuel/Petrol type, installed systems (e.g. Safety systems, sound systems, central locking), Air conditioning, Insurance, Tax and MOT, Number of seats, Type of Transmission, Miles per Gallon and Service History.

I shall use only cars which are 2nd hand in my coursework because as soon as the car has been used the value instantly loses the VAT and becomes 2nd hand.

Plan:

I shall look at Scatter Graphs for Price against Age, Price against Colour, Price against engine Size and Percentage depreciation against age. I shall also try to refine my graphs and where possible use secondary sources, I shall also look at the Percentage depreciation per year of certain models. I shall work out formulas for my trend lines, describe correlations and compare graphs where it is relevant. If I were to do these by hand I would select maybe 10 from my sample but because I have access to the spreadsheet, I can easily use all 100.

Hypothesis:

Middle

Through this graph, we can see a weak but positive correlation which proves my prediction to be correct. I shall now try to use only a certain model which should eliminate those outliers from cars which had an expensive original price or those which have lost value much faster than the others.

Usingjust Fords, I have made a scatter graph to show how much more the sample has been refined and how much stronger the correlation gets when you refine the sample, without any proper outliers, this graph has a positive correlation.

Although this graph has a strongish correlation I do not believe that this is relevant because it uses the 2nd hand price which will be largely subject to the age rather than the engine size, I believe it would be more relevant if I took the original prices against engine size and than used the depreciation to relate it to the 2nd hand price.

Again by using just Fords, I have made a graph which clearly shows a positive correlation but there are too many outliers to make a formula. So I would need to choose a specific model to try to make a formula.

Age against Price:

Conclusion

nd hand car.

Fords: Using the same method as I used before I have acquired the formula, Percentage Depreciation = 5 × Age + 35so the depreciation per year is about 5%. Also Fords lose 35% of their value after they have been used.

Vauxhalls: Again I shall use the same method to acquire the formula, Percentage Depreciation = 7.5 ×Age + 22.5 so the depreciation per year is about 7.5% and Vauxhalls lose 22.5% of their value after they have been used.

Conclusion:

From this investigation, I have found that the price is mainly affected by the age and original price of the car although the make, model and peripherals also affect the price although they affect the original price which in turn affects the 2nd hand price. I am now also able to find out which cars lose value faster and I am also able to apply this in a business if I were to choose such a profession.

Although I was unable to use secondary sources because of information which was not included in the information (mainly original price), I was still able to use information in the sample I had to refine my graphs so I could have definite results. I have learnt many things from this investigation, mainly what affects the price of 2nd hand cars most and this may in future influence my choice of car which I plan on buying.

This student written piece of work is one of many that can be found in our GCSE Gary's (and other) Car Sales section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related GCSE Gary's (and other) Car Sales essays

1. ## used car coursework

This scatter diagram shows the affect on used car price as the age increases. The trend line I added shows a slope going downwards from left to right. It shows a negative correlation between used car price and age. From the graph I can say that as the age increases the used car price decreases.

2. ## My maths coursework is based on a spreadsheet with information about cars.

There is an anomalous result at eight years, as a Bentley car was particularly expensive and this is making the average much higher. The line graph shows that generally the older a car get the less it costs. The line graph shows a general trend in the results but isn't that accurate.

1. ## Used Cards - find which factors will influence the price of a second hand ...

10700 12000 148 Chrysler GrandVoyager 6690 15000 156 Land Rover Range Rover 7735 12000 166 Mercedes M-Class 25810 19000 169 Ford Explorer 4715 10000 177 Mercedes A-Class 12320 80000 190 Ford Escort 1225 10000 Analysing and Calculating To analyse my data I will use a "XY scatter graph" as I

2. ## maths=Data Handling Coursework

I will also use a line of best fit. The reasons to why I have chosen this particular things Is because they will make it easy for me to present my data and also compare it. The calculations that I am going to follow is that I am going to find the mean of each of the cars, and

1. ## Handling data Used car prices

5-6 Years The 21st, 11th, 1st, 18th, 15th, 23rd, 19th and 5th cars. 7-8 Years The 20th, 14th, 17th, 23rd, 22nd, 15th and 16th cars. 9-10 Years The 8th and 4th cars. 11+ Years The 1st car. The following cars have been included into the sample and will be used to find the relationship between age and value of depreciation.

2. ## T-Total Maths

76 77 78 79 80 81 T NUMBER T TOTAL 20 37 21 42 22 47 23 52 24 57 25 62 26 67 Numbers inside T shape 20 11 1 2 3 21 12 2 3 4 22 13 3 4 5 23 14 4 5 6 24 15

1. ## Used second hand cars

4700 5 34000 57 Ford 8680 3200 4 27000 64 Ford 14505 8800 2 7200 65 Ford 13230 8250 3 34000 80 Ford 13183 3495 7 43000 81 Ford 17780 7995 4 30000 86 Ford 6590 1664 10 37000 96 Ford 15405 3995 5 57000 33 Ford 7310 1050 8

2. ## Maths Coursework - Used Cars

53.79278446 Fiat Punto 7518 3769 1.1 38000 4 49.8669859 Fiat Punto 8601 3995 1.2 31000 4 53.55191257 Fiat Cinquecento 6009 1995 0.9 20000 6 66.7998003 Ford Orion 16000 7999 1.8 7000 1 50.00625 Ford Escort 8785 1595 1.3 68000 7 81.84405236 Ford Fiesta 7875 1495 1.8 74000 11 81.01587302 Ford

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to