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• Level: GCSE
• Subject: Maths
• Word count: 1028

# Comparing the height and weight of the pupils at Mayfield High School

Extracts from this document...

Introduction

Jack Davies

Maths

GCSE Maths Statistics Coursework

For my maths statistics coursework I am going to be comparing the height and weight of the pupils at Mayfield High School. I will compare height and weight because it is continuous data. Firstly I will take a sample of the data.

To get a sample of my data I will tell the spreadsheet to assign a random number to each set of data and then display the data in order of these numbers, I will then chose the top 50 rows of data as my sample. I have chosen this method because it is completely random and easy to do. I will avoid choosing a biased sample by randomising the order of the data again if the sample appears to be biased.

Middle

1.70

42

642

1.71

68

391

1.59

44

317

1.60

41

112

1.62

40

934

1.79

72

198

1.62

54

656

1.61

35

929

1.63

54

262

1.75

60

737

1.60

74

636

1.53

47

I will start by plotting a scatter graph of the height of the pupils against their weight.

The graph shows that there is positive correlation. It tells us that as the taller the pupil the heavier he or she is but there are a few exceptions. The line of best fit tells us that a person who is 1.6 meters weighs about 51 kilograms. I can also work out how strong the correlation is, 0 being the weakest correlation and 1 being the strongest correlation.

I have found out that the generally the taller a person is the heavier he or she is and this is what predicted would be the case.  I am now going to take

Conclusion

Conclusion

I finally conclude that boys are taller than girls. I have the evidence to prove it. Also that it is true that the heavier you are the taller you are. There are some strands of data to go against that. My assignment has been a success. The weight and height graph supports my original hypothesis as it shows positive correlation. I used a scatter graph to display this information because the data was very spread out and most suitable for a scatter graph.

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

1. ## Height and Weight of Pupils

100 1.60 48 I will investigate these following hypotheses using my sample of data: Hypotheses * Year 8 females will be taller and heavier than year 8 males. * Year 11 males will be taller and heavier than year 11 females.

2. ## mayfield high statistics coursework

to 160 which I believe is slightly above average in my honest opinion for my sample and also I have come to find that the trend is rather varied although the frequency are upward to a certain point and downward from the peak onwards.

1. ## Maths Statistics Coursework - relationship between the weight and height

54 0.04 4.2 0.001681 17.64 0.1722 1.69 42 0.08 -7.8 0.006561 60.84 -0.6318 1.70 54 0.09 4.2 0.008281 17.64 0.3822 1.67 48 0.06 -1.8 0.003721 3.24 -0.1098 1.91 82 0.30 32.2 0.090601 1036.84 9.6922 1.62 63 0.01 13.2 0.000121 174.24 0.1452 2.06 84 0.45 34.2 0.203401 1169.64 15.4242 1.63 59

2. ## Conduct an investigation comparing height and weight from pupils in Mayfield School.

164 50 Mikeal Christophe Bodman 149 38 Rhys Boyo 147 41 Ben Brown 158 40 Avais Butt 160 50 Stephen Campble 152 32 Andrew Brown Chavies 159 52 Neil Cohen 155 38 Nick Michael Connaugto 162 48 Stephen Cronie 135 29 James Dean Davies 157 55 Ben Dever 165 52

1. ## Mayfield High Statistics Coursework

I have also found out that the mean for the boys is exactly 0.11m higher than the girls and the median for the boys 0.1m higher than the girls. This shows me that without anomalous results the boys in my sample are on average taller than the girls in my sample.

2. ## we can see if there is any correlation between a person's height and weight ...

131 Year 8 145 125 Year 9 118 143 Year 10 106 94 Year 11 84 86 To create a random sample you have to open up a excel document and type in (lets say for example) A1, =RAND(). Once you have done this a random number will come up,

1. ## Statistics Mayfield High

There are 2 low outliers: one at 69 and one at 74. There is a mean of 120 and the SD is 13. The Boys IQR is greater than that of the girls which suggests that the boys are more intelligent than the girls.

2. ## Handling Data - Mayfield High School

I shall group the IQ of boys and draw a histogram. I shall need to draw a histogram because the class-widths will not be equal. I will then join the midpoints of each class-width on the histogram with a curve.

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