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AS Level Statistics Project Investigating the relationship between height and weight for the pupils in a secondary school Table of Contents Introduction 3 Primary Data by Direct Observation 3 Secondary Data 3 Hypotheses 4 1. Distribution 4 2. Comparative 4 Methods 4 Data Collection 4 Choosing the Data 4 Stratified Sampling 4 Randomised Selection 4 Analysis and Interpretation of Data 5 Data Summaries 5 Measures of Spread of Data 6 Box and Whisker Diagrams 6 Stem and leaf and Frequency Table (Boys Height) 7 Stem and leaf and Frequency Table (Girls Height) 8 Stem and leaf and Frequency Table (Boys Weight) 9 Stem and leaf and Frequency Table (Girls Weight) 10 Standard deviation and confidence intervals 11 Comparing heights against Weight for Boys 11 Correlation Analysis 11 Comparing heights against Weight for Girls 12 Correlation Analysis 12 Conclusions 13 Evaluation 13 Appendix 1 - The data 14 Introduction For this investigation, I am going to use data on secondary school pupils to find the distribution of the data and also to look for any meaningful relationships between the heights and weights of the students. When I was looking at the various things that I could study, one of the factors that I looked at was data collection. The amount...

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