This week we've covered descriptive statistics (ppt here) and the multi-store model of memory (ppt here).
You need to know how to calculate the mean, mode, median and range. We went through through how to calculate the standard deviation, but you wouldn't ever have to do this in full. Don't stress if Maths isn't your strong point; the important thing is that you know what the standard deviation is (a measure of the spread of the data about the mean) and when it is used.
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