Math Statistics Project

My main factor I am investigating is going to be weight. For the

majority I aim to investigate the effect of weight on height. I am

also going to look at the frequency of different weight groups among

people.

A· The height will be measured in cm. I will keep it continuous by not

asking the people to place their heights into groups, but instead

enter their heights.

This will be Quantitive data.

A· The weight will be measured in cm. I will keep it continuous by not

asking the people to place their into groups, but instead

enter their weights. This will be Quantitive data.

A· I will collect this data myself.

I predict average height people weigh the least, followed by smaller

people, who weigh more than usual, and lastly the taller people will

weigh the most.

I think smaller people will weigh more than average because people who

stay indoors and don’t get as much exercise (to burn the calories) put

on weight, and don’t grow because they don’t get enough exercise.

Taller people, I think will weigh the most because they will have more

mass to make up for them being tall (for example imagine cubes,

you stack the cubes up to make a taller cube which has more mass than

the individual cubes).

IMAGE

Although greatly exaggerated the graph shows what I mean.

I predict that the average height will be or a range 150cm, 160cm

for Year 7 and Year 8 Girls and Boys. I have predicted this because my

own height is 165cm and I know my height doesn’t fluctuate wildly, and

that I ‘t grown much since Year 7 and 8, so I took away 10 cm

which left me with 155cm A±5cm.

I also predict that the average weight will be over a range of 45kg,

50kg for Year 7 and Year 8 girls and Boys.

I have predicted this

because I know I was about 48kg in Year 7 and Year 8 and weighed about