Investigating and comparing data distributions
General Mathematics: Units 1 and 2
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This is another video in the General Maths Units 1 and 2 course. This one looks at how we can use summary statistics to summarise data. I take a look the how to find the mean (and what that actually means). We look at finding the median for both odd and even numbers of data items. The range follows with a discussion about how this isn't a great measure of anything. I look at a comparison between the median and the mean and which is the best to use before heading into the excitement which is the Interquartile range. Finally I look at what the standard deviation is and how we find it using pencil and paper and CAS. There are a number of worked examples and all the theory is explained in my own unique style!
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Video tags
vce maths
maths tutorials
summarising data
find the mean
find the median
find the range
find the interquartile range
find the standard deviation
summary statistics
comparing median and mean
Do I use the median or the mean
general maths
year 11 maths
grade 11 maths
unit 1 and 2 maths