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Compare the IQ levels of male and Female students in yrs 10 and 11.

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Maths GCSE statistics Coursework In this coursework I have been given data from Mayfield School which is a fictitious school but the data given is from a real school. There is various information given includes hair color, eye color, height, weight, IQ levels etc. for the course work I have to take the information given and presents a comparison of a set a data. I have chosen to compare the IQ levels of male and Female students in yrs 10 and 11. i have been given a sheet with 50 random students from each year and with this information Iam going to compare which group has the better IQ level. My predication is that the girls IQ levels will be more concentrated in one area where as the boys may will be concentrated but not as much as the girls. First I will need to write down the IQ levels of 50 students from each gender. Here are the IQ levels of 50 students in years 10 and 11 at Mayfield School. ...read more.


49 100 50 86 This data is reliable because it is from the edexcel website and was given to us by our teacher. To make sure my data was reliable I wrote the IQ levels out twice and I went over them several times to check for accuracy. Now I have drawn a tally table with a frequency so I can see which numbers are most frequent in the results. In the tally table I used a space of 4 between each one because it would be too big to write out the full range of the results. The tally table helps to show the frequencys of the female students is more on each number where as the male frequency of the male students is less and more spread out. This doesn't help much in the end result but it does show that the females seem to have closer results where as the males have a more varied results. As the tally table didn't show much I'm going to make a stem and leaf diagram which will help to draw up and box plot graph. ...read more.


So far the graphs and diagrams I have drawn haven't given a exact conclusion on whether my prediction is right or wrong. To get more evidence on which gender has better IQ levels I am going to draw and cumulative frequency diagram for each genders IQ levels. I have drawn 2 cumulative frequency diagrams one for each gender. The male IQ levels gradually get higher where as the female IQ level shows a more steepness at the 90. This shows that the Female IQ levels are more frequent in the higher areas where as the male IQ levels don't show a immediate steepness where as the females does. With this information I can see that the girls IQ levels are a lot more frequent in the higher levels where as the boys is frequent in the higher areas but not as much as the girls. In conclusion I feel that the calculations have been successful enough to say that the Female IQ levels have been better then the Males. Although my prediction stated that the Female IQ levels would be higher, my personal thoughts were that they would clearly be better then the Males but the have both got almost equal results. ...read more.

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