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Investigating the relationship between heights and weights of 50 girls in year 11.

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Introduction

Maths Coursework-relationship between heights and weights of 50 girls in year 11

HYPOTHESIS:

I think that as the height of the girls increases the weight will as well, so I expect my graph to have a slight positive correlation.

METHOD:

From my data I selected the results for year 11 females. I then numbered each one from 1 – 86. I

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Middle

50

1.68

48

GRAPH:

image00.png

image01.png

COMPARISON:

Height of year 11 girls (m)

Weight of year 11 girls (kgs)

Height of year 11 boys (m)

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Conclusion

0.579 = 0.7609205, this is above the critical value for 50n so, I can therefore say that my results have a highly positive correlation.

EVALUATION:

I think my results have been successful and have proved my hypothesis correct, but if I was going to repeat the investigation I would have included the outliers and commented on the anomalies on my graph.

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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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