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Data Handling Introduction: For my investigation I am using data from a simulated school called Mayfield High School. This is a mixed secondary school with 265 students. There are 2-year groups, 10 and 11. This contains many different records, including, first name, surname, height, weight, age, month of birth, gender, IQ, distance between home and school, and Ks2 result. I have chosen to investigate the relationship between height and weight, because it is quite probable that they influence each other. Here are my hypotheses, which are all related to height, weight or both. 1. There will be a positive correlation between height and weight of both years. 2. To investigate if students of year 10 are heavier then year 11. 3. To find out if students in year 11 are taller. . I will collect data on the height and weight of 50 students from both years. I will do a random stratified...

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