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# What affects the price of second hand cars?

Extracts from this document...

Introduction

Statistics coursework:

What affects the price of second hand cars?

## Planning

I will be investigating what affects the price of second-hand cars. To do this I will be choosing 4 cars makes at random and then using different models made by those people as part of my investigation. I will then investigate 5 lines of inquiry, which will be:

• Fuel
• Mileage
• Engine (size in cc)
• Insurance group
• Age

I have chosen these because I think that these factors are what most effect the price of a second hand car.

First I’ll need to write a Hypothesis, which is what I think that I will find out from the investigation. Then I will find out all about the models for each make I choose.

Middle

34000

9

Escort

13183

3495

7

1.8

43000

10

Mondeo

17780

7995

4

2

30000

10

Fiesta

6590

1664

10

1

37000

4

Escort

15405

3995

5

1.8

### Diesel

57000

8

Mitsubishi

Model

Price when new (£)

Price now

(£)

Age in years

Engine size (in cc’s)

Insurance group

Carisma GDI

14875

5999

2

1.8

24000

10

Carisma

15800

5999

2

1.8

33000

10

## BMW

Model

Price when new (£)

Price now

(£)

Age in years

Engine size (in cc’s)

Insurance group

525i SE

28210

5995

8

2.5

55000

15

316i

13650

6995

6

1.8

71000

11

## Land Rover

Model

Price when new (£)

Price now

(£)

Age in years

Engine size (in cc’s)

### Mileage

Insurance group

Discovery

27855

13995

1

2.5

Diesel

40500

13

#### Hypothesis

I think that I will find out that age most effects the price of a second hand car out of the lines of enquiry I have chosen. This will be closely followed by mileage. I think that this is because if the car is old or it has a high mileage then it is more likely to need service.

Conclusion

0">1st Line of enquiry: Age
 Ford Age Number of cars 1 1 2 1 3 2 4 2 5 2 6 0 7 3 8 1 9 0 10 1 11 1 Mitsubishi Age Number of cars 1 0 2 2 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0

 BMW Age Number of cars 1 0 2 0 3 0 4 0 5 0 6 1 7 0 8 1 9 0 10 0 11 0 Land rover Age Number of cars 1 1 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0

Average age of Ford cars =

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