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# Mayfield High School has 1183 students aged between 11 and 16. Although the name of the school is fictional, the data recorded is based directly on a real school.

Extracts from this document...

Introduction

Maths GCSE coursework.                                                                            Danny Emerson

Mayfield High School

Plan

Mayfield High School has 1183 students aged between 11 and 16. Although the name of the school is fictional, the data recorded is based directly on a real school.

The data has been given to us (secondary data). We have been given data about all the students that attend the school. We have been given this data:

Data is provided on each student such as:

Name, Age, Year group, IQ, Weight, Height, Hair Colour, Eye Colour, Distance from home to school, Usual method of travel to school, No of Brothers and sisters, Key Stage 2 results in English, Maths and Science.

MY AIM

My aim in this investigation is to

Middle

Sampling Methods

Random sampling is the purest form of probability sampling. Each member of the population has an equal and known chance of being selected. When there are very large populations, it is often difficult or impossible to identify every member of the population, so the pool of available subjects becomes biased.

Systematic sampling is often used instead of random sampling. It is also called an Nth name selection technique. After the required sample size has been calculated, every Nth record is selected from a list of population members. As long as the list does not contain any hidden order, this sampling method is as good as the random sampling method. Its only advantage over the random sampling technique is simplicity.

Conclusion

c1">Year 7

13

Year 7

15

Year 8

13

Year 8

14

Year 9

15

Year 9

11

Year 10

9

Year 10

10

Year 11

8

Year 11

8

59

61

I then was able to use random numbers to find my sample. E.g. 13 random numbers for year 7 females.

These are the randomly generated numbers

Formulae used for each stratified sample

This is the original amount of students (1183)

This student written piece of work is one of many that can be found in our GCSE Height and Weight of Pupils and other Mayfield High School investigations section.

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