• 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
8. 8
8
9. 9
9
10. 10
10
11. 11
11
12. 12
12
• Level: GCSE
• Subject: Maths
• Word count: 2359

# Investigate how the prices of used cars vary from new cars.

Extracts from this document...

Introduction

USED CARS PRICES

## PLAN

I am going to investigate how the prices of used cars vary from new cars. I am going to sample all the cars that are two years of age and under and compare it with cars that are in the range of five to eight years old. I am going to compare two different cars makes with each other and I am also going to sample out all of the cars with the mileage of 70,000 and less and compare it the price of the cars with the mileage of more than 70,000.

I will plot the prices of cars on different graphs, draw a line of best fit and compare it with the others. So I will have three different types of graphs that are going to be age against price, make against the price and mileage against the price.

I collected the following data for my coursework:

No.

Present Price

Price when New

Age

Make

Mileage

Engine Size

1

£6,970

£11,600

3

Ford

24,000

1.6

2

£3,350

£7,100

7

Peugeot

85,000

1.1

3

£3,995

£13,800

6

Ford

52,000

2.0

4

£5,300

£16,300

6

Vauxhall

70,000

2.0

5

£6,500

£8,700

3

Fiat

24,000

1.2

6

£1,500

£8,700

9

Vauxhall

82,000

1.6

7

£995

£8,500

9

Ford

102,000

1.8

8

£3,000

£10,400

7

Vauxhall

63,000

1.7

9

£7,495

£9,770

1

Vauxhall

8,000

1.4

10

£850

£7,540

10

Ford

124,000

1.6

11

£5,595

£11,000

4

Ford

41,000

1.6

12

£4,995

£9,880

3

Ford

34,000

1.4

13

£5,595

£14,000

4

Ford

55,000

1.6

14

£4,995

£11,500

4

Rover

40,000

1.4

15

£2,600

£12,000

7

Rover

82,000

1.6

16

£1,000

£6,200

10

Peugeot

119,000

1.1

17

£750

£5,100

11

Peugeot

96,000

1.0

18

£1,350

£9,140

8

Ford

108,000

1.6

19

£2,950

£17,750

8

Ford

96,000

2.9

20

£3,250

£9,990

7

Vauxhall

86,000

1.6

21

£5,650

£11,150

3

Vauxhall

34,000

1.6

22

£4,600

£7,300

2

Rover

17,000

1.1

23

£5,400

£7,300

1

Rover

11,000

1.1

24

£4,800

£7,300

1

Rover

26,000

1.1

25

£2,700

£13,000

5

Fiat

51,000

2.0

26

£11,000

£13,800

1

Peugeot

9,000

1.8

27

£2,800

£6,500

5

Fiat

43,000

1.0

28

£8,000

£21,000

4

Rover

142,000

2.3

29

£6,495

£8,800

2

Ford

23,000

1.3

30

£4,050

£8,400

4

Ford

48,000

1.3

31

£6,300

£10,300

2

Ford

26,000

1.3

32

£4,100

£8,900

4

Vauxhall

37,000

1.3

33

£6,600

£8,500

1

Vauxhall

9,000

1.3

34

£7,800

£10,500

1

### Peugeot

13,000

1.4

35

£8,700

£16,000

3

Vauxhall

42,000

2.0

36

£2,000

£8,300

7

Peugeot

65,000

1.4

Now I am going to sample out the cars that are 2 or less years of age, and compare them to the cars that are in the range of five to eight years old.

Below are the cars that are below the age of two:

 No. Price Price when New Age Make Mileage Engine Size 1 £7,495 £9,770 1 Vauxhall 8,000 1.4 2 £4,600 £7,300 2 Rover 17,000 1.1 3 £5,400 £7,300 1 Rover 11,000 1.1 4 £4,800 £7,300 1 Rover 26,000 1.1 5 £11,000 £13,800 1 Peugeot 9,000 1.8 6 £6,495 £8,800 2 Ford 23,000 1.3 7 £6,300 £10,300 2 Ford 26,000 1.3 8 £6,600 £8,500 1 Vauxhall 9,000 1.3 9 £7,800 £10,500 1 Peugeot 13,000 1.4

Middle

Rover

82,000

1.6

6

£1,350

£9,140

8

Ford

108,000

1.6

7

£2,950

£17,750

8

Ford

96,000

2.9

8

£3,250

£9,990

7

Vauxhall

86,000

1.6

9

£2,700

£13,000

5

Fiat

51,000

2

10

£2,800

£6,500

5

Fiat

43,000

1

11

£2,000

£8,300

7

Peugeot

65,000

1.4

Below is the graph showing the price against the age.

This graph also shows a negative coloration and it also shows that as the car gets older the price goes down.

The trend line in this graph is steeper than the one on the top; this is because the cars’ price doesn’t drop so much while it is a couple of years old, where as after a few years the price of the cars goes down quicker.

Now I am going to sample out cars according to their make and then chose two of the most common ones, then I am going to compare the prices of the two car makes.

 No. Price Price when New Age Make Mileage Engine Size 1 £6,500 £8,700 3 Fiat 24,000 1.2 2 £2,700 £13,000 5 Fiat 51,000 2 3 £2,800 £6,500 5 Fiat 43,000 1 4 £6,970 £11,600 3 Ford 24,000 1.6 5 £3,995 £13,800 6 Ford 52,000 2 6 £995 £8,500 9 Ford 102,000 1.8 7 £850 £7,540 10 Ford 124,000 1.6 8 £5,595 £11,000 4 Ford 41,000 1.6 9 £4,995 £9,880 3 Ford 34,000 1.4 10 £5,595 £14,000 4 Ford 55,000 1.6 11 £1,350 £9,140 8 Ford 108,000 1.6 12 £2,950 £17,750 8 Ford 96,000 2.9 13 £6,495 £8,800 2 Ford 23,000 1.3 14 £4,050 £8,400 4 Ford 48,000 1.3 15 £6,300 £10,300 2 Ford 26,000 1.3 16 £3,350 £7,100 7 Peugeot 85,000 1.1 17 £1,000 £6,200 10 Peugeot 119,000 1.1 18 £750 £5,100 11 Peugeot 96,000 1 19 £11,000 £13,800 1 Peugeot 9,000 1.8 20 £7,800 £10,500 1 Peugeot 13,000 1.4 21 £2,000 £8,300 7 Peugeot 65,000 1.4 22 £4,995 £11,500 4 Rover 40,000 1.4 23 £2,600 £12,000 7 Rover 82,000 1.6 24 £4,600 £7,300 2 Rover 17,000 1.1 25 £5,400 £7,300 1 Rover 11,000 1.1 26 £4,800 £7,300 1 Rover 26,000 1.1 27 £8,000 £21,000 4 Rover 142,000 2.3 28 £5,300 £16,300 6 Vauxhall 70,000 2 29 £1,500 £8,700 9 Vauxhall 82,000 1.6 30 £3,000 £10,400 7 Vauxhall 63,000 1.7 31 £7,495 £9,770 1 Vauxhall 8,000 1.4 32 £3,250 £9,990 7 Vauxhall 86,000 1.6 33 £5,650 £11,150 3 Vauxhall 34,000 1.6 34 £4,100 £8,900 4 Vauxhall 37,000 1.3 35 £6,600 £8,500 1 Vauxhall 9,000 1.3 36 £8,700 £16,000 3 Vauxhall 42,000 2

Conclusion

Below are the cars that have the mileage of 0 – 69,999 miles.

 No. Price Price when New Age Make Mileage Engine Size 1 £7,495 £9,770 1 Vauxhall 8,000 1.4 2 £11,000 £13,800 1 Peugeot 9,000 1.8 3 £6,600 £8,500 1 Vauxhall 9,000 1.3 4 £5,400 £7,300 1 Rover 11,000 1.1 5 £7,800 £10,500 1 Peugeot 13,000 1.4 6 £4,600 £7,300 2 Rover 17,000 1.1 7 £6,495 £8,800 2 Ford 23,000 1.3 8 £6,970 £11,600 3 Ford 24,000 1.6 9 £6,500 £8,700 3 Fiat 24,000 1.2 10 £4,800 £7,300 1 Rover 26,000 1.1 11 £6,300 £10,300 2 Ford 26,000 1.3 12 £4,995 £9,880 3 Ford 34,000 1.4 13 £5,650 £11,150 3 Vauxhall 34,000 1.6 14 £4,100 £8,900 4 Vauxhall 37,000 1.3 15 £4,995 £11,500 4 Rover 40,000 1.4 16 £5,595 £11,000 4 Ford 41,000 1.6 17 £8,700 £16,000 3 Vauxhall 42,000 2 18 £2,800 £6,500 5 Fiat 43,000 1 19 £4,050 £8,400 4 Ford 48,000 1.3 20 £2,700 £13,000 5 Fiat 51,000 2 21 £3,995 £13,800 6 Ford 52,000 2 22 £5,595 £14,000 4 Ford 55,000 1.6 23 £3,000 £10,400 7 Vauxhall 63,000 1.7 24 £2,000 £8,300 7 Peugeot 65,000 1.4

Here as you can see that this graph also has got a negative coloration, the graph shows that as the mileage goes up the price goes down. There are two anomalous results; this can be because of the model of the car. According to the graph the cars with the least mileage have got the highest price.

Below are the cars that have the mileage of 70,000+

 No. Price Price when New Age Make Mileage Engine Size 1 £5,300 £16,300 6 Vauxhall 70,000 2 2 £1,500 £8,700 9 Vauxhall 82,000 1.6 3 £2,600 £12,000 7 Rover 82,000 1.6 4 £3,350 £7,100 7 Peugeot 85,000 1.1 5 £3,250 £9,990 7 Vauxhall 86,000 1.6 6 £750 £5,100 11 Peugeot 96,000 1 7 £2,950 £17,750 8 Ford 96,000 2.9 8 £995 £8,500 9 Ford 102,000 1.8 9 £1,350 £9,140 8 Ford 108,000 1.6 10 £1,000 £6,200 10 Peugeot 119,000 1.1 11 £850 £7,540 10 Ford 124,000 1.6 12 £8,000 £21,000 4 Rover 142,000 2.3

This graph is not as I had predicted it to be, it has got positive coloration where as I thought that it is going to have negative coloration.

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

2.5 6.25 134 12 10000 31.5 10.5 21 441 58 9 10000 20 10.5 9.5 90.25 170 9 10000 20 10.5 9.5 90.25 158 12 10000 31.5 10.5 21 441 113 9 10000 20 10.5 9.5 90.25 160 7 10000 13 10.5 2.5 6.25 169 10 10000 24 10.5 13.5

2. ## Handling data Used car prices

This causes the price decrease. I think that as the car's age increases the value of depreciation is higher, due to the fact that age has more significance when it is older. So a car that is 1 years old is still relatively new and would not have done many

1. ## Maths Coursework:Used Cars

Random Sampling Ford 3rd 13th 15th 10th 7th 15th 12th 16th 15th 8th 11th 7th 5th Vauxhall 10th 7th 9th 11th 4th 7th 2nd 12th 7th 12th Analysis Now I will start testing my hypothesis that I predicted to see if they are true.

2. ## Statistics: Factors Affecting the Price of Used Cars

198,415,396 20045 401,802,025 23553 554,743,809 18366 337,309,956 Totals ?x = 148,656 ? x2=2,450,035,384 The standard deviation for both, the price and the mileage are low so the data is quite close to the mean. I worked out Spearman's co-efficient rank of correlation to find out the correlation between mileage and price.

1. ## Legal and Ethical Analysis of Ford Pinto

The Pinto was tested to this standard, and modifications were made to ensure that it met this standard. When the NHTSA subsequently proposed much stricter standards, Ford tested the cars and found that they could not meet the standards without significant, costly modifications.

2. ## Used second hand cars

Thereby I will not take into any account of this sampling to further my investigation. *Due to the fact that the pilot survey was successful, I have decided not include or exclude any things to precede my actual investigation. Data processing: Main work Age: I have isolated the all the

1. ## Maths Coursework - Used Cars

Thus, it would be logical to use those four in my investigation because if I use all of the cars and come out with a sample of 6 Fords, 3 Vauxhalls, 1 Landrover, 1 Mazda etc, this will then make my investigation unfair because all of the cars do not

2. ## Factors affecting price of Used Car

The gradient m is m is 5036.7; this tells us that its engine 80015; this indicates that the engine size has a high has the lowest price compared to the rest. value. Unlike the above graph of Ford, this graph is steeper.

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