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Aim I am going to find out about which year group can do better in KS2. Pilot Sampling To start with I will go to try is it going to work, so I am going to use random sampling. I will choose the people in random to find out about which year group can do better in KS2 and I will also make a graph. year group marks 7 4.912281 8 4.5 9 4 10 3.6 11 2.983333 In this graph you can see very cleanly that lower year group can do much better than higher year group, but we cannot see the reasons by just look at their results. So now I am going to find out is it about their IQ, is it because in this school lower year group have better IQ. Hypothesis I am going to find out and investigate: 1. can IQ get their results better on KS2 2. lower year group can do better than higher year group people in KS2 Stratified Sample: I am going...

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