• 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...


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?

...read more.


























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:


Height Distribution among girls.


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.


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.  


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 ...

    5 15 25 35 Frequency 7 10 10 3 The Mean Is (5 X 7) + (10 X 15) + (10 X 25) + (3 X 35) = 540/30= 18 30 And the standard deviation will be V [7 X (5-18)] + [10 X (15 - 18)] + [10 X

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

    Within this aim I was also aiming to find whether there is a certain trend or relationship between the height and weight of the students that I have chosen to analyse and as I explained earlier due to the large number of students I was not possible to analyse all

  1. Liquid chromatography is a technique used to separate components of a mixture to isolate ...

    experiment for column 2 (100 � 4.6mm column of Genesis C18 300� 4�) were difficult to explain. Firstly, a contaminant on the column was suggested - but the column was washed with water and acetonitrile for long periods of time to no avail.

  2. Height and Weight corralarion in boys and girls

    60 kg and the ranks were 15, 16 and 17, I would add the ranks up to make 48 and dived it by 3 so the rank of the three peoples weight would be 16. I did this for both the height and the weight.

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

    With my graph or calculations I may have some difficulty in working them out. This is because as mentioned previously, the data I am gathering data from and analysing is secondary data. Moreover, my graphs and calculations may not be accurate because of this and could cause my hypothesis in being false.

  2. mayfeild statistics

    1.67 1.68 1.68 1.68 1.68 1.69 1.69 1.69 1.69 1.70 1.7 1.70 1.71 1.72 1.73 1.73 1.75 1.76 1.78 1.79 1.80 1.8 1.8 1.84 1.85 1.88 1.97 2 2 2.03 2.06 Weight (Kg) 30 38 38 40 42 42 42 42 44 44 45 45 45 48 48 48 48

  1. Examine the intersection of psychology and the media

    physical prowess is twisted into something to fear as it represents the primitive, dangerous Other. A montage sequence from Michael Moore's film Bowling For Columbine (2002) provides a usual visual representation of this where he cuts between a news report of an invasion of African killer bees which, so say

  2. Hypothesis"The taller you are, the bigger is your foot length". I think my hypothesis ...

    Frequency Class width Frequency density Greater or equal to Less than 16 18 2 2 1 18 20 1 2 0.5 20 21 9 1 9 21 22 8 1 8 22 23 14 1 14 23 24 10 1 10 24 25 26 1 26 25 26 8 1

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