• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

I am going to investigate data provided by Mayfield High School. I am going to look at forty bits of data and the difference in correlation between the heights and weights of boys and girls in the school.

Extracts from this document...

Introduction

Statistics Coursework

I am going to investigate data provided by Mayfield High School. I am going to look at forty bits of data and the difference in correlation between the heights and weights of boys and girls in the school. I am going to look at them separately and together because I can then compare them to each other.

Method for choosing my data

I am choosing my data by going to every other 10 names, for years 7, 8 and 9. Then every 5 names for years 10 and 11. I am going to record my data by putting it into tables one for girls and one for boys. My data is going to be collected by:

Name

Gender

Height

Weight

Year

Alphabetical

Order

Then putting my data onto a scatter graph. A graph for all years, a graph for girls and a graph for boys.

Name

Gender

Height

Weight

        Year

Agha, Hosiab

Armanio, Vintchenzo  

Austin, Steve

Barlow, Billie

Bilial, Muhammed

...read more.

Middle

1.63

70

54

48

49

38

56

53

50

38

44

52

59

57

60                        

80

80

56

58

57

60

57

47

50

84

56

9

9

9

9

8

8

7

7

8

8

9

10

11

           11

           11

10

11

11

10

10

10

11

11

11

10

Ali, Aisha

Anderson, Kylie

Bellfield, Janet

Bolton, Megan

Brown, Caroline

Burney, Amna

Campbell, Nichole

Casey, Danielle

Cook, Melissa

Ali, Amera  

Black, Mia

Bradbury, Natalie

...read more.

Conclusion

x = 1.7

y = 58

So I need to replace x and y to find c:

58 = 7 x 1.7 + C

58 = 11.9 + C -11.9

46.1 = C

So the equation is:

y = 7x + 46.1

To test this I need to test it on the graph and using the equation:

The Graph

x = 1.6

y = 52

The Equation

y = 7 x 1.6 + 46.1

y = 11.2 + 46.1

y = 57.3

So this isn’t exact but it is very close.

Conclusion

On average the graph shows that the taller boys are heavier than the taller girls, and on average I would say my graphs show the boys to be heavier. My graphs show that the correlation is positive and it is good.

Small boys are lighter in weight than small girls. Medium boys are heavier in weight than medium girls, ditto with tall boys and tall girls. So my original prediction is correct, the majority of boys are heavier than girls.

...read more.

This student written piece of work is one of many that can be found in our GCSE Height and Weight of Pupils and other Mayfield High School investigations 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

See related essaysSee related essays

Related GCSE Height and Weight of Pupils and other Mayfield High School investigations essays

  1. mayfield high statistics coursework

    Median height for boys in the sample that I have taken is larger in comparison to the girl's median height. Boys Median Height is 170 cm whereas Girls Median Height is 162 cm and shows that there is an 8cm difference in the middle figure from both sets of data

  2. Mayfield High Statistics Coursework

    data it was very difficult to sort it into a fair order so that I can sample and randomize my pupils. If I was to make any corrections to my hypothesis I would sort it into a fair order to further eliminate bias from my results.

  1. The aim of the statistics coursework is to compare and contrast 2 sets of ...

    this is so that you do not have to round up or down you simply take the first number to the left of the decimal place. Keep on pressing = until you have a sufficient amount of data. You may find that the same number comes out more than once.

  2. Is there a difference between male and female conversational styles in today's society?

    This is because at the beginning the participants were too conscious of the tape recorder. The point at which I started transcribing is where I felt the discourse was most natural and spontaneous. The disadvantages of having tape recorded my data was the fact that you are unable to view

  1. Mayfield High School

    The mode is simple; you just find the group with the highest frequency. I am now going to find the mean, median and mode of the IQ and Ks2 results. To make it easier for my I am going group the data up.

  2. Maths: Data Handling Coursework

    The median weight for girls and boys in year 7 is roughly the same. This shows that in year 7, girls and boys have similar heights and weights in average. The box plot diagrams show that between the Years 7, 9 and 11, the height and weight of boys' were increasing.

  1. Maths Data Handling

    out the median and gain an accurate analysis of the specific weights and heights of the girls and boys. Once this was done I was able to create the histograms. I am investigating two pieces of continuous data (height and weight)

  2. Maths Statistics Coursework: Mayfield High

    w < 40 3 30 ? w < 40 2 40 ? w < 50 9 40 ? w < 50 13 50 ? w < 60 4 50 ? w < 60 9 60 ? w < 70 4 60 ? w < 70 1 70 ?

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