if you check out the points in the graph......the bar graph is overlapping so dont get confused on how to read the graph...just read it direct,,,,in usa for males itz 72 and females itz 68...so ratio is 72:68....now if u keep dividing the numbers ,,to the simplest ratio you get 18:17
how are we suppose to know it's the whole bar and not just the white section?
how are we suppose to know it's the whole bar and not just the white section?
In statistical data(the graph and bar graph stuff),,,,,,if NOT specified the the bars drawn DO NOT overlap...then it means it they do overlap...an any type of bar graph...may it be in any category....remember that......if two diffrent colours are used in the same chart like the one in the paper and any information on exeptions not given...just read direct values
Try and make notes on each topic, using the book provided by edexcel, or a revision guide, or even the internet.
After that use the notes, try and understand it. Once you do understand it try and memorise it. I do this with most of the topics. But, just remember to understand it before memorising it.
Btw I use the specification to check of all the things I have to know.