Investigate the height to weight ratio in terms of body mass index and how year group or gender may affect it.

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Tina Qiu                                                                   29th January 2003

Mayfield High School Investigation

Plan

        For my statistics coursework, I am going to investigate the height to weight ratio in terms of body mass index and how year group or gender may affect it.

My hypothesis is that the taller a person is then the heavier they are in terms of their weight to height ratio. In addition to that, as the year group increases the greater their height to weight ratio will be, this may also be affected by gender.

The reason for this may be because as people grow older they will need more food to supply the energy they need and boys tend to need more energy than girls as age progresses as they are more taller and perhaps are more active. I am expecting that there will be a positive correlation between the ratio of height in height to weight ratio and weight in height to weight ratio. This may be because the taller a person the heavier they are and so a shorter person may weigh less than a taller person. However gender or year group might affect this.

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Before I start my statistics investigating, I will need to collect the following data from the datasheet - the height and weight ratio in boys and girls in all year groups. I will be able to find and access this information from a datasheet in which all the data from Mayfield High School are entered, provided by Edexcel. I have chosen this source because there are a variety of year groups between boys and girls and therefore a wide variety of height to weight ratios. I know this data is reliable because it is a actual school provided by ...

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