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• Level: GCSE
• Subject: Maths
• Word count: 1522

# Investigate what influences the price of a second hand car.

Extracts from this document...

Introduction

Patrick Carroll

Introduction:

The question that I was ask on this piece of coursework was to investigate what influences the price of a second hand car. What I will do in this investigation is use graphs and charts to find out what it is that affects the price of a second hand car.  I got the information to do this from a data sheet that contains 100 cars and some information about them, from that 100 I had to pick 36 so to do this I used the random select button on my calculator then it showed me a number that was in decimals so to convert it into a whole number I times it by 100 and marked it off on my data sheet, I then repeated this process 36 times and put them into a table which is shown bellow. The reason I used the random select button was because if I would have chosen 36 cars my self then it wouldn’t be fare because I could have picked the first 36 cars and the first 36 cars could have been the most expensive.

I predict that red will be the Modal color of car

Middle

9795

3191

6

Red

43000

2

Mercedes   A1 04 Classic

14425

10999

1

Red

14000

2

Rover         623 Gsi

22980

6999

4

Green

30000

1

Vauxhall     Tigra

13510

7499

4

Marine

27000

1

Fait             Bravo

10351

3495

5

Red

51000

2

Vauxhall     Vectra

18140

6499

4

Blue

49000

2

Mitsubishi   Charisma

15800

5999

2

Blue

33000

2

Rover         41 6i

13586

3795

6

Silver

49000

1

Rover          114Sli

8595

2495

6

Red

33000

1

Ford            Escort

8785

1595

7

Blue

68000

2

Fiat             Uno

6864

1495

8

Red

51000

3

Vauxhall     Cavalier

10150

850

10

Green

73000

2

Volkswagen Golf

15080

400

15

Black

102000

3

Renault       Clio

6795

1995

8

Black

47000

2

Citroen        Debut

5715

1495

7

Green

50000

1

Fiat             Tipo

8272

1500

7

Black

32000

2

Conclusion

As I said in my introduction that I predict that the number of owners would affect the price of a second hand car I wasn’t right the graph shows no correlation between the two so no the number of owners does not affect the price of a second hand car.(This graph is labeled graph 2)

And finally I am going to see if mileage affects the price of a second hand car.

I am very surprised at the result of this investigation I found out that there is no correlation between mileage and second hand price on my graph, I thought there would have been a strong correlation between the two but there was only a week negative correlation as the point were not spread close to the line of best fit. (This is shown in graph 3)

Out of investigating to see if age, number of owners and mileage affect the price of a second hand car I found the only age in my investigation affected the price of the second hand cars.

I found that as the car gets older the price gets lower EG the Volkswagen golf was £15080 and after 15 years the price bombed down to £400, if age didn’t affect the price of  this car then in would of just went down a little bit.

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

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