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# Maths - Statistics Mayfield High

Extracts from this document...

Introduction

Maths statistics coursework

My coursework will involve me investigating the relationships and correlations between the data in the Mayfield high spreadsheet. I will be analysing the data and portraying them in different statistical forms. I have decided to look at the height, weight, gender and age. By looking at these I can make a hypothesis and predict outcomes like as follows:

My first Hypothesis:

I predict that genders affect your weight e.g. boys are heavier than girls. I shall do this by using averages and means for boys and for girls and then comparing the two set to see. I think that boys will be heavier than girls of the same age, this is because of many different reasons, like body mass is higher for boys than girls. In my investigation I may find outliers that may offset my results.

Middle

Mean:

55.93

49.73

Mean without  outliers:

49.93

50.85

Range:

102

75

Range without outliers:

28

28

=

Possible outlier

The year 8 mean shows that the girls are heavier than the boys at this point. This means that the girls are at their peak of their growth spurt compared to the boys. The range shows that girls at this point have a more varied weight than the boys.

Year 9

 Year 9 Female Male Type: Weight (kg) Weight (kg) 47 52 42 38 50 38 39 81 49 50 50 38 75 50 57 58 36 42 67 50 51 36 35 40 51 45 51 36 35 52 Mean: 49.00 47.07 Mean without  outliers: 49.00 44.64 Range: 40 45 Range without outliers: 40 22 = Possible outlier

The year 9 mean shows that the girls are heavier than the boys but the girls as slowing down with

Conclusion

I conclude that the my hypothesis was correct at the end of the investigation but as my results shows the hypothesis isn’t correct whilst the pupils were in the years 7,8,9,10 this would be because of the physical difference between when sexes have their growth spurts. I believe that boys over the year of 11 will be heavier on average than girls excluding any outliers. This was downloaded from courswork.info so if you haven’t read this and understood it then you’re cheating yourself and will be found out During the years 7,8,9,10 the girls have a larger range as there growth is staggered across these years but at years 11 the girls have stopped growing and the boys are growing at their peak and so their range is bigger.

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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