what graphs should i include for my gcse maths coursework on data. I am comparing height and weight?

Answer 1

Yes, scatter graphs, but why not try one for males, one for females, and one for all. Investigate if scatter graphs for different groups of people have different lines of best fit. Good luck with your coursework.

Answer 2

You should definitely include a scatter plot with a line of best fit. You could then find the gradient and/or equation of this line. This graph would show if there was any correlation between a person's height and their weight - there should be some.

Answer 3

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Answer 4

To specifically compare height and weight you need a scatter graph. After that you can look just at height or weight and compare boys and girls. For this you should orgainse your data in a back-to-back stem and leaf diagram(ie one for boys, one for girls), do a cumulative frequency curve for each and then boxplots from the cumulative frequency curves. This is a good way of comparing the two sets of data. When comparing data always refer to specific numerical quantities, for example 'the median height of girls is 162cm which is less than than median boys height of 167cm' etc..

Good luck!

Answer 5

do a scatter graph with a best fit line. That way you can judge whether someone is very over or under weight for their height.