Quartiles are the values that divide a data set into quarters: Put the values in order Divide the list into four equal parts The Quartiles are at the divisions The interquartile range shows the range ...
To get the median, put all of the numbers in a set in increasing numerical order. Count how many numbers there are in each set. This is shown here: If the number of items in a set is even, divide it ...
Data sets can be compared using averages, box plots, the interquartile range and standard deviation. Revise comparing data sets using statistics with this National 5 Maths quiz.
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