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• Level: GCSE
• Subject: Maths
• Word count: 1284

# My hypothesis is, if a student (who is an adult) walks or cycles to school every morning, then they are thought to be fitter than the students who go by the means of transport, like a Car, Bus or Tram. The way Im intending to prove this is by using the

Extracts from this document...

Introduction

Mathematics Coursework

Statistics

Introduction &

Hypothesis

For this piece of coursework, I have gathered data on 30 girls and 30 boys in Year 11. The Body Mass Index theory (which I will explain later on) can only be applied on adults. Year 11 students are counted as adults. This is why I am able to use the students in this piece of coursework.

My hypothesis is going to act in the form of my prediction as well. Therefore, if this prediction is proved correct by the end of this coursework, I am successful.

My hypothesis is, if a student (who is an adult) walks or cycles to school every morning, then they are thought to be fitter than the students who go by the means of transport, like a Car, Bus or Tram. The way I’m intending to prove this is by using the BMI (Body Mass Index) Theory is a way of comparing the height and the weight of an adult, and seeing whether they are under weight, normal, over weight or obese.

Middle

These are my BMI results rounded off;

18 19 21 21 15 24 19 26 17 17 17 21 22 18 21 18 21 19 16 22 18 18 21 21 17 24 20 26 20 15 17 21 20 21 16 18 21 22 18 21 17 17 18 18 18 17 18 20 20 19 22 20 17 22 22 19 22 20 20.

Now I need to make the stem and leaf table, so for these results. I’ll need a table with 2 factors.

1    8 9 5 9 7 7 7 8 8 9 6 8 8 7 5 7 6 8 8 7 7 8 8 8 7 8 9 9 7 9

2    1 1 4 6 1 2 1 1 2 1 1 4 0 6 0 1 0 1 2 1 0 0 2 0 2 2 2 0 0

Now I need to set it up in order to make it easier to work things out for this information.

1    5 5 6 6 7 7 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 8 9 9 9 9 9 9

2    0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 4 4 6 6

Now that they are set up in order, I can now start making my Frequency table.

 15 ll 21 llll llll l 16 ll 22 llll ll 17 llll llll 23 - 18 llll llll lll 24 ll 19 llll l 25 - 20 llll lll 26 ll

Conclusion

I also had a problem when I was doing my line graph. The problem was that I didn’t know what the quartiles were for. So I had to ask my friends for help, one of my friends showed me how to do.

Next time when I do this type of investigation, I will try and use other ways of presenting my data. I.e. I will use graphs like, bar charts and dot-to-dot graphs (don’t know the real name). Maybe then I might be able to get a higher grade.

I also feel that the area I was working on was a tuff area, in the sense that it was hard to produce the data on that topic. I feel in future I should do topic like, the relationship between height and shoe size and the relationship between height and weight. These topics are much more easier to work on and its easier to produce data on them.

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.

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