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Friday 5 April 2013

Mayfield high investigation

A population may contain separate groups or strata. individually(prenominal) group acquires to be fairly represented in the sample. The number from each group is proportional to the group size. The alternative is hence made at random from each group, this is called stratified sampling, and I need to use this to make sure my results represents each group fairly, the equation I need to use is:

No. Of pupils in specific data X Sample No.

Total No. Of pupils

Stratified Sampling

Yr 10 boys= 106/ 370 X 60= 17

Yr 10 girls= 99/370 X 60= 15

Yr 11 boys= 84/370 X =14

Yr 11 girls= 86/370 X 14

Boys= 17+14=31

Girls= 15+14=29

Now from this I go away randomly pick my sample of 60 pupils because it is big bountiful to represent the whole school, I will do this employ my calculator by pressing 370Ran# this will give me a random number in decimals I will then round it off. If a number comes up more than one time I will ignore it. I will right off keep going until I have a near set of data.

Collecting The Data

As I have already mentioned in my introduction, I will use a sample of 60 students. Upon victimization the random sampling sample. I realised that I would need 31 boys and 29 girls to fairly represent each group.

Boys         

Height         Weight

1.9         70

1.6         50

1.6         47

1.68         59

1.8         72

1.77         59

1.72         62

1.75         45

1.75         57

1.57         49

1.73         57

1.54         54

1.63         56

1.61         56

1.65         47

1.65         55

1.6         51

1.67         66

1.72         51

1.65         42

1.69         5

1.75         60

1.7         72

2         60

1.

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86         80

1.51         38

1.57         54

1.61         45

1.5         45

1.52         44

1.62         51

Here argon all the boys to be included in...

Youve obviously put almost time and drift into documenting the results of your investigation. Your report could have benefited from a kick the bucket statement at the very beginning as to the plan of your investigation. You need to capitalize the title of your paper. It would be advisable to remove references to pages containing diagrams (e.g., scatter diagram, histogram and box plot) which have not been provided. Commendable effort! This is now the third time this information has been provided, although I billhook the slight change in your title.

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