Height and Weight Data on High School Children Essay -- Data Handling

absent Some GraphsHandling Data CourseworkIntroductionThis is based on put on data on a school called Mayfield high school. I leave behind be comparing dickens variables I have chosen to equation the relationship between the height and weight of the pupils in the school. It provide be involving the following socio-economic class groups seven, eight and nightclub. The data that I have been effrontery to me is a secondary source, which was provided to me by teacher which was from the internet. The data has provided me with each pupils name, age, socio-economic class group, height, hair and eye color, and the distance from home to school, traveling method, number of brothers and sisters and KS2 results. The perplex of this investigation is to find out a relationship between two variables, the two variables which I have chose to investigate atomic number 18 height and weight. HypothesesTo attempt my first supposal i.e. as pupils get onetime(a) the boys and girls get heavier and taller. I result carry out a stratified take in of 60 boys and girls. The reason why I will do a sample is because it will show the different proportions of people in each year group and gender. Therefore my data will be representative of Mayfield laid-back School. Once I have collected the data I will then organize the heights and weights of the girls and boys in a grouped oftenness table. I will then use this table to find the mean, mode, median(a) of the results of the heights and weights of these males and females. I will then construct a cumulative frequency graph to find and locate the median, lower quartile and upper quartile. This will then be used to draw a box plot for the heights and weights of male and females. This data will be used to befriend me to close down my first hypothesis.To test hypothesis two i.e. girls in y... ... that overall my hypothesis is correct. This is shown in the graphs of the data showing the boys and girls in year eight, nine and eleven. However in the graphs showing year seven and ten proves that my hypothesis is wrong. Also my last graph shows an overall outlook of the whole people I had sampled and it shows a very positive correlation of the taller you atomic number 18 the heavier you are.To conclude my coursework I have learnt that all of my hypotheses are correct. My first hypothesis was the older you are the heavier you weigh. My second hypothesis was the girls in year seven are taller and heavier then boys in year seven. My last hypothesis is the taller you are the heavier you are. From analyse these I have learnt that the older you are the heavier you are, year seven girls are heavier and taller then boys and the taller you are the heavier you are.