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 ...
The mean is the most commonly used measure of average. To find the mean of a list of numbers, add them all together and divide by how many numbers there are: \(\text{mean} = \frac{\text{sum of all the ...
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