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Using the data from Mayfield High School, I am going to be investigating the relationship between IQ level and Key Stage 2 results.
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Using the data from Mayfield High School, I am going to be investigating the relationship between IQ level and Key Stage 2 results. I would expect to find that people with higher IQ will have higher KS2 results. I am going to take a random stratified sample of 60 students; this will enable me to take a proportional amount of pupils from each year group. To do this calculation I needed to find the number of people in each year group then divide it by the total number of people in the school, after you have done this you need to multiply it by the size of your stratified sample. So my calculation for the number of students I need from year 7 would be: 282/1183*60=14.3... as this is a decimal answer I will have to round it off to the nearest whole number. As mine is 14.3 I...
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