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

Are girls taller than boys

Extracts from this document...

Introduction

Maths Statistics Coursework

        Recently due to the media and the government the weight of children has been discussed. It is believed that children are now becoming obese and are now more overweight than children in the past. This had led to public becoming worried about the health of the future generation because there is currently an increase in the number of coronary heart diseases, which are linked to obesity and lavish lifestyle.

Consequently, I have decided to investigate the state of children’s health in today’s schools. In order to do this, I must explore whether the height of children has increased, and whether it would result in an increase in weight. However, it is necessary to explore the differences between boys and girls to allow me to reach a beneficial conclusion to this investigation.

My investigation will delve into the following areas.

  • Who are taller, boys or girls?
  • Is height a dependent variable for the weight?
  • How much does weight vary with age?

My first hypothesis is that I believe that boys are taller than girls.

...read more.

Middle

Martyn

Male

1.69

5

Vegeta

Goku

Krillain

Male

2.00

35

Cayby

Laura

Sarah

Female

1.02

55

Hakins

Danielle

Louise

Female

1.03

45

Savage

Louise

Margaret

Female

1.06

74

Height outside 2m, which I took as the maximum allowed height.

The modified data for boys and girls was then imported into Autograph to produce the following graphs for boys and girls across the whole school:

image00.png

Height Distribution among girls.

image01.png

Height Distribution among boys

[compare mean, median, mode etc here for the whole as well as differences in distribution, and draw conclusion accordingly]

I will now investigate this data further to determine if there is a correlation between the heights and weights, and if such a correlation occurs, whether it is stronger in boys or girls.

My first action with this data will be to remove any outliers from

...read more.

Conclusion

With my modified data, I will now plot a scatter graph in order to identify any correlations or trends, and to determine the range and average values for my data. I will also construct a line of best fit, the gradient of which can be used to make predictions based on the overall trend using the correlation coefficient, which is the gradient of the line.  

image02.png

This graph shows a relatively clear positive correlation between Height and Weight. As height increases, generally, so does height, although at a moderate rate.

The equation of the line of best fit is:

y = 43.03x-18.47

This equation reveals a number of important facts about the correlation of my data:

The coefficient of x; the gradient of the line, shows that for every metre of height gained, statistically, height will increase by 43.03 kg.

I will apply this equation to the weight data, which will create an alternative set of heights. I will then compare these statistically calculated heights to the true heights in order to determine the reliability of the equation:

...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. A hypothesis is the outline of the idea/ideas which I will be testing and ...

    1183 On the upcoming page you will find the calculation of my Stratified Sample. Stratified Sampling Calculations I want 20 Students from the school total 1183. I have come to find using Microsoft Excel that 251 Students throughout the school are Left Handed whereas Right Handed Students are 922 and

  2. Mayfield. HYPOTHESIS 1: Boys at Mayfield School are Taller and Weigh more on ...

    students so I gained a sufficient sample which I made as unbiased as possible. MY HYPOTHESIS WAS CORRECT Conclusion of Hypothesis > The Histograms, frequency polygons proved that the results were more accurate and made more sense than that from the random sampling.

  1. Height and Weight corralarion in boys and girls

    students are overall more overweight in the UK compared to Afghanistan as very few students weight were over 55 kg in the sample from Afghanistan whereas the sample of the UK the heavier students were around 70 kg this can also be a reason why the sample from the internet

  2. I will be testing the following hypothesis in my pilot study: ...

    I therefore will be using the Inter-quartile Range method. I will be removing the outliers because they may cause my hypothesis to be false and eliminating them could make my hypothesis true. When using the Inter-quartile Range method I will be aware of any outliers because it will be more

  1. Mayfield data

    on whether boys are taller and weigh more in comparison to girls. Mean of Girls and Boys Weight BOYS Weight (kg) Tally Frequency (f) Mid-point (x) fx 30?w<40 IIII 4 35 140 40?w<50 IIIIIII 7 45 315 50?w<60 IIIIII 6 55 330 60?w<70 III 3 65 195 70?w<80 0 75

  2. mayfeild statistics

    48 50 50 50 50 51 52 52 52 54 54 54 54 54 54 54 54 56 56 60 62 62 63 63 63 63 64 64 65 66 66 67 68 70 72 72 73 75 78 84 84 86 86 Mode The mode is the value which occurs most often.

  1. Examine the intersection of psychology and the media

    I made a tight smile. "Look a Negro!" It was true. It amused me. "Look a Negro!" The circle was drawing a bit tighter . . . . "Mama, see the Negro! I'm frightened!" Frightened! Frightened! Now they were beginning to be afraid of me.9 The boys reaction is a typical reactionary identification of a black male by someone from a negrophobic society.

  2. Hypothesis&amp;quot;The taller you are, the bigger is your foot length&amp;quot;. I think my hypothesis ...

    8 26 27 10 1 10 27 28 5 1 5 28 29 3 1 3 29 31 2 2 1 31 33 1 2 0.5 33 35 1 2 0.5 The above histograms show that there are few short or tall people, medium height people have highest frequency density,

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