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height weight and pulse

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Introduction

Chris Stanage        Statistics Course Work        

Math’s Coursework

Statistics

Planning Investigation

I have been given a survey of the Boy’s of the Oratory School. The survey consists of the boy’s pulse, height and weight. I have made two hypotheses:

  1. The lower the pulse, the taller you are.
  2. The taller you are, the higher your weight is.

My reasons behind hypotheses 1 is because the lower your pulse normally means you are fit and sporty, most sporty people are reasonably tall. My reason behind hypotheses number 2 is because you are bigger and therefore should have a reasonable amount of weight compared to someone who isn’t that tall.

Method

I will be choosing 28 samples at random.

...read more.

Middle

Low

Small

58

169

Low

Small

53

170

Low

Small

41

171

Low

Small

66

172

High

Small

80

174

High

Small

66

176

High

Tall

71

176

High

Tall

51

177

Low

Tall

41

178

Low

Tall

60

178

Low

Tall

42

179

Low

Tall

62

180

High

Tall

72

180

High

Tall

73

182

High

Tall

55

185

Low

Tall

63

187

High

Tall

55

188

Low

Tall

54

189

Low

Tall

65

190

High

Tall

57

191

Low

Tall

I shall now represent the data in a Talley chart.

Pulse

Frequency

 High

13

Low

15

Height

Frequency

Tall

15

Small

13

Conclusion Of Talley

Frequency

Low&Small

7

High&Small

6

Low&Tall

8

High&Tall

7

28

This data can be represented in an easier form, such as a pie chart.

image00.png

So therefore:

21%+25%+25%=71%

29% of the pupils I sampled had a low pulse rate, and are tall. This information can once again be show in a pie chart.

image01.png

Conclusion

My hypothesis was incorrect as you can tell from the pie graph.

Hypotheses 2

My hypothesis is: The taller you are, the more weight you have.

...read more.

Conclusion

c6" colspan="1" rowspan="1">

Small

Light

166

50

Small

Light

166

61

Small

Light

167

46

Small

Light

168

47

Small

Light

169

50

Small

Light

169

56

Small

Light

170

55

Small

Light

171

51

Small

Light

172

63

Small

Heavy

174

80

Small

Heavy

176

62

Tall

Heavy

176

76

Tall

Heavy

177

101

Tall

Heavy

178

55

Tall

Light

178

59

Tall

Light

179

70

Tall

Heavy

180

70

Tall

Heavy

180

71

Tall

Heavy

182

80

Tall

Heavy

185

64

Tall

Heavy

187

63

Tall

Heavy

188

70

Tall

Heavy

189

65

Tall

Heavy

190

70

Tall

Heavy

191

70

Tall

Heavy

The above is RAW data, I will represent the data in a Talley chart.

Height

Frequency

Tall

15

Small

13

Weight

Frequency

Heavy

15

Light

12

The end result is:        

Tall&Heavy

13

Small&light

11

Tall&Light

2

Small&Heavy

2

The data is represented best by using a pie chart.

image02.png

We are told on the graph the percentages. So therefore:

7%+7%+39%=53%

So the end result is:

image03.png

In the end, I have proven my hypotheses to be incorrect. Only 47% of the boys that I sampled were tall and heavy.  

...read more.

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