Maths coursework- help! Mayfield High StatististicsWatch
hamish( my names not really hamish by the way!!)
Specify your problem ; height v weight, IQ v ave. hrs of tv
Make Hypothesis (What you think is true)
Plan what data you need and what you will do with it.
Collect data: random sample (best stratified)
Summarise your sample data (averages, cumulative frequency, boxplot)
Look for relationships: scatter graphs, correlation, line of best fit
conclusion: refer to your hypothesis, and whether your graphs support this.
Evaluate: plan, sampling, any limitations to sample, how you can extend (ie do boys and girls separately, compare to another year)
If you have time: do the extension to improve your marks.
Hope this helps
Said what im looking at. (Height and Weight or Year 11 Boys and Girls)
Made 3 hypothesis
1. The taller the person the greater the weight.
2. Males on average weight more.
3. Males on average are taller.
I've collected 30 year 11 boys and 30 year 11 girls.
I havnt a clue what to do next.
My hypothesis are:
compare the height and weight of pupils in ks3 and ks4.
is the increase in the amount of television watched by pupils in year 11 reflected by their size.
So far I have done:
cumulative frequency for height abd weights of pupils in ks3 and ks4.
freaquency polygon for heights and weights of pupils in ks3 and ks4.
Please help me im really stuck and this has to be in next week.
What do I do next.
Could you send me step by step plan plzzz
If you have any helpful info plzz e-mail me: [email protected]
Use continuous data, not something like hair colour or ks2 results.
Histogram (Not bar chart)
Averages (Mode,Mean,Median and range)
Interquartile Range (for instance [1 2 3 4 5 6 7 8] 6 - 3 = 3)
Explain clearly why you have used each method
Same as grade C but also :
An Advanced histogram
Use stratified sampling
Hope this helps
collected height and weignt data
from all years to get the right amout for this i stratisfied it
for eg i want 40 pieces of data so to find out how many yr 7s i do 282/1183 x 40 =9.5 so i will choose 9 yr 7s and i do this for each year
all the numbers really mean no. in year / total in school x amount of data u want
then i drew a scatter graph and then wrote about it
after this u do spearmans rank correlation and stabdard deviation for it