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Introduction I have chosen to compare the relationship between IQ and Key Stage 2 Results and my hypothesis is that the greater the person's IQ, the better their Key Stage 2 will be. I will use scatter graphs to represent my data and to find out if my hypothesis is true. For the scatter graphs I will be drawing the lines of best fit, finding the equations of these lines and using this to compare. I will also be using cumulative frequencies and box and whisker diagrams to look at the interquartile range and the median. If my hypothesis is true, I expect to see a positive correlation. Sampling the Database For my whole database I will use stratified samples, where the samples reflect the proportions of the whole population. Therefore, the school is growing and there are more students in year 7 than year 11. This means, there are likely to...

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