The interquartile range is the upper quartile – the lower quartile ... cumulative frequency Drawing a box plot from a cumulative frequency graph is straightforward as long as the median and ...
The interquartile range ... frequency diagram. It is acceptable when dealing with an even total cumulative frequency to use LQ = \(\frac{n}{4}\) and UQ = \(\frac{3n}{4}\). To work out where the ...
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