GSCE Maths Statistics Coursework

GCSE Maths Statistics Coursework

Description of task

I will be investigating data from Mayfield High School. There are 1182 students at Mayfield and I have 13 categories of data on each. I will be investigating the relationship between height and weight, I expect a graph of weight and height to show positive correlation.

Plan

I am getting my data from the school website; this will not be completely reliable as it is a secondary source. 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. If I find outliers in my sample, I will still use them in my investigation.

I will calculate the following for the data: mean, median, mode, range and IQR.

Conclusions

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. Also, I have found that this coursework has assisted me in many ways. As well as allowing me to have and develop a further insight into statistics, I also understand how it would affect people in their everyday lived. Like take for example,, I have learnt these mnemonics in medicine –

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