In the example above ... so to find the lower quartile, find \(\frac{1}{4}\) of 40, which is the 10th value. Reading from the graph, the lower quartile is 38. To find the upper quartile, find ...
In order to calculate this value we must first understand what the lower quartile, median and upper quartile are: the lower quartile is the median of the lower half of the data. The \(\frac{(n+1)}{ ...
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